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Inicio  Tags  Filter module

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Doepfer A-124 VCF5 Wasp Filter 12dB Multimode Filter Module (special edition, black/yellow)
Cat: 671564 Rel: 29 Nov 17
 
12dB multi-mode filter with unique classic circuitry, based on the filter from the 70s EDP Wasp synth
Notes: Module A-124 is a special 12dB multimode filter using the "strange" filter circuit of the "EDP Wasp" (an analog synthesizer with black/yellow case built end of the seventies, manufactured by the UK company "Electronic Dream Plant" with Chris Huggett und Adrian Wagner). This design "abuses" digital inverters as analog operational amplifiers leading to distortions and other "dirty" effects that generate the specific sound of this filter. The filter is equipped with a band pass output and a combined low/notch/high pass output. For this output a control knob defines the relation between low and high pass signal. If both signals appear at the same level (i.e. middle position of the Mix knob) one obtains a notch filter. Otherwise the low or high pass signal predominates. The module does not feature self-oscillation in contrast to most of the other filters of the A-100 system.

Inputs: Audio In, CV In (2x)
Outputs: Bandpass Out, Low/Highpass Mix-Out
Controls: Audio and CV attenuator, Frequency, Resonance, LP/HP Mix

The function and operation of this module is very similar to the module SEM VCF A-106-5. But the sound of both filters is very different! The only functional difference is the position of the sockets and controls, and the function of the controls CV2 (A-124: normal attenuator, A-106-5: polarizer).

- 3U Eurorack module, 8HP wide, 45mm deep
- Current draw 30mA
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MRP:$90.42 SAVE 10%
 9 in stock $81.80
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Xaoc Devices Belgrad Dual Peak Multimode State Variable Filter Module
Cat: 633368 Rel: 28 Nov 16
 
All-analogue voltage controlled filter module - Eurorack compatible
Notes: Belgrad is an all-analogue voltage controlled filter module which - on par with our other modules - brings something new to the table. While it can be used as a traditional VCF for "academic" subtractive synthesis, we guarantee countless hours of exciting timbral explorations thanks to its unique character, flexibility, and features. The most prominent feature is that it offers a multitude of frequency responses with two resonant peaks.

- Eurorack synth compatible
- 14HP, skiff friendly
- Current draw: +45mA / -42mA
- Reverse power protection
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 2 in stock $294.93
Joranalogue Filter 8 Multimode Filter & 8 Phase Oscillator Module
Cat: 757112 Rel: 06 Jan 20
 
Analogue 'OTA style' cascaded 4-pole lowpass VCF with self-oscillation capability
Notes: Belgian analogue innovators Joranalogue serve up an ultra-versatile filter module. Multimode flexibility meets self-oscillation for added sonic versatility. A hell of a lot of filter for the money.

Supplier's notes:
Representing the cutting edge in modular analogue voltage controlled filter (VCF) design, Filter 8 offers more possibilities and higher fidelity in 12 HP than ever before.

Starting from the classic OTA-style 4-pole cascaded lowpass (LP) topology, Filter 8 features separate LP outputs, each with their own character. Additional filter responses are achieved by pole mixing: 1-pole highpass, a special band boost and notch response, phase shifter and 4-pole bandpass. All outputs are available simultaneously.

Key to Filter 8's performance is the innovative resonant feedback circuit. By increasing the resonance, all outputs will resonate at the filter frequency, without any low frequency response loss. At higher resonance levels, self-oscillation is achieved, turning the module into an excellent 8-phase sine wave voltage controlled oscillator (VCO) with temperature and switchable gain compensation, low distortion, constant amplitude and accurate frequency tracking over at least 5 octaves. At sub-audio frequencies, Filter 8 can function as an 8-output voltage controlled slew modifier or 8-phase low frequency oscillator (LFO).

Simultaneous exponential and linear frequency modulation is possible, for classic FM tones or chaotic modulation. A hold feature is also provided, 'freezing' the output voltages manually or under gate control. This is useful for halting modulations, or as a sync-like effect at audio frequencies. The dedicated 'ping' input allows you to easily create crisp percussive sounds with different timbres.

While rooted in the legacy of classic synthesisers, Filter 8 provides a new approach to musical signal generators and modifiers: instead of simply a VCF, VCO, slew modifier or VCLFO, a single analogue module can now be any of those, and anything in between.
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MRP:$296.01 SAVE 10%
 1 in stock $266.94
4ms Spectral Multiband Resonator Module
4ms Spectral Multiband Resonator Module (filter/envelope follower/digital/oscillator/dual/stereo synth module)
Cat: 589505 Rel: 10 Dec 15
 
Innovative resonant filter synthesiser module - 26HP
Notes: The Spectral Multiband Resonator from 4ms Company is an innovative resonant filter which can process audio like a classic filter bank, ring like a marimba when plucked/struck, vocode, re-mix tracks, harmonize, output spectral data, quantize audio to scales, and much more...
A gorgeous ring of colored lights displays the frequency of each filter, as well as the levels and current scale selection(s).

At a glance, the SMR works like a normal six-band graphic EQ: six frequency band-pass filters are mixed together using sliders. Resonance/Q is variable, which changes the "ringy-ness" or width of the bands.

But here's where comparison stops. The frequency of each channel is treated like a note in a scale, and the six bands form a chord. Spin the Rotate knob and the "notes" circle around the scale, rotating back to the bottom once they've reached the top. Adjust Spread and the distance (interval) between each note changes. Triggers for up/down motion, CV inputs for sequencing and scale selection allow for flexible control with external modules. Morph, which automatically cross-fades between frequencies, together with variable Slew allows rhythmic clocks drive the SMR as a variable-speed evolving resonant filter.

At maximum Resonance/Q, the SMR can be struck like a gong or marimba by inputting clocks or triggers. The frequency of each channel is quantized to a scale: beautiful chords, ethereal tones and eerie ambiance flows easily. With lower resonance, the SMR can pull out particular frequency bands, and sweep these across the spectrum.

Two 1V/octave Frequency jacks allow for tracking even and/or odd bands and creating floating melodies over evolving chord bases, or complex percussive membrane sounds.

Save your settings into one of six storage banks, and recall on the fly. On startup, the SMR instantly jumps to the last saved settings. The color scheme of the lights can be adjusted, so if you prefer all white lights on your modular, you can have that (or all red, or rainbows, pastels, etc..)!

Advanced features:
- Program your own scale. The frequency of each of the 20 notes can be assigned by setting the octave, the semi-tone, and coarse and fine micro-tone. Up to 11 scales can be saved permanently in the user bank
- Adjust color scheme of the LEDs. Pick a pre-programmed color scheme or create your own using the sliders to set Red/Green/Blue values. Custom color schemes can be saved permanently
- Save your settings in one of six parameter banks. Note position, scale and bank selection, Q value, Lock settings and color scheme can be saved and recalled on the fly. On startup, the SMR loads settings from the last saved bank.
- Optional alternative filter type for a more exponential decay when plucked and different timbral qualities. Freq jacks no longer track 1V/oct in this mode.
- Slider LEDs can be assigned to display level for each channel (combination of slider position and CV on the jack), or clipping for each channel.
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MRP:$468.24 SAVE 23%
 2 in stock $362.75
Intellijel/Cylonix Rainmaker 16-Tap Stereo Spectral Rhythm Delay & Comb Resonator Module (silver)
Intellijel/Cylonix Rainmaker 16-Tap Stereo Spectral Rhythm Delay & Comb Resonator Module (silver) (delay/effect/digital/dual/stereo/filter/oscillator/reverb/clock generator synth module)
Cat: 620692 Rel: 10 Aug 16
 
Stereo rhythmic delay & stereo comb resonator synth module in Eurorack format - 36 HP wide
Notes: The Intellijel/Cylonix RAINMAKER eurorack-format module provides a high-quality (96KHz sampling rate with 32-bit internal processing) stereo rhythmic delay and stereo comb resonator effect.

The stereo rhythm delay has 16 taps, each with its own resonant 2nd-order filter and granular pitch shifter. The filters have independently adjustable resonance and cutoff frequency, and can be set to either lowpass, bandpass, highpass or bypass operation. The filters are also capable of self-oscillation, enabling modal synthesis techniques. The granular pitch shifters have a range of 15 semitones up or 16 semitones down. Each tap can repeat at a rate value set in tap#'s in order to create regenerating echo effects. The feedback signal has a lowpass/highpass tone control and its own pitch shifter. The tap delay times can range from 0.1 millisecond up to a maximum of 20 seconds. The overall delay times can be set with the rotary encoder, the tap tempo button, or synced to an external clock.

The stereo comb resonator section has 64 time-delayed taps which are summed together. This produces a deep comb filter or resonating effect. At large comb sizes (long time delays) a multiple echo effect is produced. The density of the resonator can be varied from 2 to 64 taps. The tap with the longest delay time is fed back to the input. High feedback levels, with short comb sizes, produce "Karplus-Strong" types of plucked string sounds. The relative timing of the 64 taps are set according to one of 16 different preset patterns, which provide different resonator timbres or echo rhythms. The comb size can be set either with the rotary encoder, an external clock or through a transposable 1v/oct input voltage.

The Rainmaker module has extensive voltage control capabilities. Direct voltage control is available for the delay feedback level and tone, the global pitch shift for all delay taps, the comb resonator size, and comb feedback level. There are two assignable modulation inputs, which can be assigned to different parameters in each preset. A trigger input with assignable functionality can trigger built-in types of noise bursts, freeze the delay buffer, reverse the delay, randomize parameters, mute taps, and much more.
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 2 in stock $611.40
Endorphin.es Squawk Dirty To Me 8-Mode Zero-Delay Feedback Stereo Filter Module (black)
Endorphin.es Squawk Dirty To Me 8-Mode Zero-Delay Feedback Stereo Filter Module (black) (filter/VCAdual/stereo/digital/effect/low pass gate synth module)
Cat: 734886 Rel: 15 Oct 19
 
Stereo filter with voltage controlled resonance - 6HP
Notes: Versatile stereo digital filter based on Endorphin's Grand Terminal module. CV-controlled cutoff, resonance and separate high-pass filter. Simple but effective.

Supplier notes:
The Squawk Dirty To Me is a stereo filter with voltage controlled resonance. It features eight filter modes and zero-delay feedback.

- Simple and effective 6hp stereo VCF
- 8 filter modes available with meta CV scanning, famous zero-delay feedback Grand Terminal filters
- Additional hi-pass filter in series quickly cuts the boomy low end
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 1 in stock $180.83
Doepfer A-196 PLL Phase Locked Loop Module
Doepfer A-196 PLL Phase Locked Loop Module (filter/oscillator/effect synth module)
Cat: 755416 Rel: 14 Nov 19
 
Eurorack phase locked loop module, featuring voltage-controlled oscillator, phase comparator & low pass filter
Notes: Module A-196 contains a so-called phase locked loop (PLL). The basic PLL system is shown in the sketch at the bottom of this page. A PLL consists of three parts: voltage-controlled oscillator (VCO), phase comparator (PC), and low-pass filter (LPF). All parts are normally connected to form a closed-loop frequency-feedback system.

This is how a PLL works: The output of the internal VCO (linear CV control, rectangle output) is compared with an external signal (e.g. the rectangle output of a A-110 VCO) in the so-called phase comparator (PC). The output of the phase comparator is a digital signal (low/high/tristate) that indicates if the frequency resp. phase difference of the two input signals is negative, zero or positive. The output of the phase comparator is processed by a low pass filter (LPF) to generate a smooth voltage that is used to control the frequency of the internal VCO. The 3 units VCO, PC and LPF form a feedback loop that works like this: The control voltage (output of the LPF) increases as long as the external frequency is higher than the frequency of the internal VCO und stops increasing when both frequencies become identical. The control voltage decreases as long as the external frequency is lower than the frequency of the internal VCO und stops decreasing when both frequencies become identical.

But there are some stumbling blocks: Different types of phase comparators with advantages and disadvantages can be made. Some phase comparators e.g. even lock at harmonics, i.e. if the two frequencies to be compared are integer multiples. But for some applications this can be used to create interesting effects. The A-196 contains 3 different types of phase comparators: PC1 is a simple exclusive OR, that even locks at harmonics. PC2 is a so-called RS flipflop and PC3 a more complex digital memory network. The user can select one of the three phase comparators with a 3-position switch. When PC2 is used a LED displays the "locked" state, i.e. when the frequency of the internal VCO is identical to the external frequency.

Special attention has to be directed to the frequency of the LPF. To obtain a smooth control voltage for the VCO the frequency of the LPF has to be much smaller than the lowest frequency of the internal or external audio signal. Otherwise the frequency of the internal VCO will jitter or wobble around the correct frequency. But for special effects this frequency jitter can be used intentionally. Example: frequencies in the range 50Hz...1kHz have to be processed with the PLL. Therefore the frequency of the LPF has to be about 10Hz or even less. Such a low frequency of the LPF causes a noticeable slew of the internal VCO. When the frequency of the external signal jumps e.g. between 500Hz and 1kHz it takes about 0.1 second until the internal VCO reaches the new frequency (like portamento). So one has to find a compromise between frequency jitter and portamento. But these remarks are valid only for the "ideal" working PLL. As the A-196 is used in a musical environment the "problems" and disadvantages with jitter and slew time lead to additional musical applications like portamento effects, wobbling frequencies or harmonic locking according to the type of frequency comparator and time constant of the PLL low pass filter. Instead of the internal manually controlled low pass filter the voltage controlled slew limiter A-171 can be used to obtain voltage control of this parameter. Normal audio filters (e.g. A-120, A-121) cannot be used for this job as the minimum frequency is to high (down to a few Hz or even less necessary) and the signal has to be DC coupled due to the low frequencies. Audio filters are normally AC coupled.

Another very important application of a PLL is frequency multiplication in combination with an external frequency divider. For this the output of the PLL-VCO is processed through an external frequency divider (e.g. A-163, A-160, A-161, A-115) before it is fed to In1 of the phase comparator. In this case the frequency of the PLL-VCO will be a multiple of the master frequency. E.g. if the A-163 is used and adjusted to dividing factor 5 the frequency of the PLL-VCO will be 5 times the frequency of the master VCO. Consequently, frequency division (A-163) leads to frequency multiplication with the PLL circuit. In combination with the PLL low pass frequency several effects can be realized (frequency multiplication with portamento or wobbling). The frequency multiplication can even be used to drive a graphic VCO. If your graphic VCO e.g. has 8 steps (e.g. A-155) and you use a frequency divider with factor 8 in the PLL feedback the output of the graphic VCO has the same frequency as the master VCO. Another application is the generation of pseudo-harmonics (not real harmonics as only rectangle waves are available) or clock generation for switched-capacitor filters.
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 1 in stock $80.72
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Erica Synths Black Dual VCF Dual Multimode Filter Module
Cat: 780436 Rel: 23 Jun 20
 
Dual multimode VCF module - 18HP
Notes: Erica Synths Black Dual VCF is a dual multimode filter with CV control over cutoff and resonance for serious modular patches.

At the core of this VCF is a highly stable, custom multimode VCF chip AS3320 (produced in Riga, btw). This module can be used as two independent VCFs with simultaneous HP, BP and LP outputs, controls can be linked to stereo application and both VCFs can be chained in series or parallel to the summing output for ultimate modulations. Bonus feature - the 16 band spectrum analyser gives you visual feedback on what happens on summing output.

Technical specifications:

Audio output amplitude: 10 Vptp
CV input (full sweep): 10 Vptp
Panel width: 18HP
Module depth: 35mm
Power consumption: 40mA@+12V, 36mA@-12V

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MRP:$274.49 SAVE 29%
 1 in stock $193.74
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Xaoc Devices Zagrzeb 1979 Stereo Four Pole VC Filter Module
Xaoc Devices Zagrzeb 1979 Stereo Four Pole VC Filter Module (dual/stereo/effects/filter synth module)
Cat: 846578 Rel: 14 Jan 22
 
A stereo multimode 4-pole (24dB/oct) state variable voltage-controlled filter (SV VCF).
Notes: A seriously versatile filter here, much more than meets the eye. Stereo, state-variable, multi-mode design gives you huge control over frequency response and stereo image.

Supplier's Notes:
Zagrzeb is a stereo multimode 4-pole (24dB/oct) state variable voltage-controlled filter (SV VCF). It offers five distinct frequency responses, three of which are available simultaneously. Spread control allows for animation of the stereo image by moving the left and right filter cutoff frequencies in opposite directions. Zagrzeb is designed to sound smooth and clean unless it is overdriven with a hot signal- however, it does not lack character! We believe it will be appreciated by fans of old Japanese synthesizers, but bear in mind that Zagrzeb is not a clone of any existing design. The four-pole state variable structure is a new development and offers unique sonic characteristics. While Zagrzeb is designed for filtering stereo signals (e.g. samples or stereo oscillators like Xaoc Devices Odessa), it can easily handle mono signals and is capable of creating a faux stereo pair thanks to a special phase shifting network at the input.

Dimensions:
8 HP

Current Draw:
70 mA +12V
60 mA -12V
0 mA 5V
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 1 in stock $237.88
AJH Synth Gemini 2412 Dual SVF Module (black)
AJH Synth Gemini 2412 Dual SVF Module (black) (dual/stereo/filter synth module)
Cat: 673546 Rel: 23 Feb 18
 
Dual vintage state variable filters - black faceplate
Notes: The Gemini 2412 is a creamy, extremely fat sounding dual filter based on vintage Oberheim SEM circuits. In addition to high-pass, band-pass and low-pass, there is the infamous variable filter type, which allows you to blend between several characteristics. Thanks to its dual concept, serial and parallel modes of operation and an ingenious modulation system, the Gemini 2412 should not only be able to achieve classic, extremely bulbous results, but also wafting stereo effects and lively formant sounds.
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 2 in stock $370.28
Intellijel Polaris Versatile Multimode VCF & Phaser Module
Cat: 620700 Rel: 10 Aug 16
 
Versatile Multimode VCF + Phaser synth module in Eurorack format - 10HP wide
Notes: The Polaris is a 4-stage cascaded OTA filter designed by David Dixon. It builds on the lineage of the Dr. Octature and Atlantis filters, but with a totally revised core and resonance control. Along with dedicated LP, HP and BP outputs it features a configurable MULTI output capable of an unprecedented 27 different filter modes.

With drive turned down the Polaris is capable of buttery smooth filtering, and the cutoff control range has been fine-tuned for playability. With the drive dialled up and the new asymmetric multi distortion circuit engaged it creates a more aggressive sound. Not content to be just a filter, the Polaris's AP phaser mode combined with frequency modulation can be used to achieve a phaser effect.

With so much versatility in a modest size, the Polaris is an ideal filter for a starter system and an excellent addition to the tonal palette of a larger modular.
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 3 in stock $214.20
After Later Audio Resonate Rings-Redesigned Module
After Later Audio Resonate Rings-Redesigned Module (external/oscillator/filter synth module)
Cat: 900386 Rel: 20 Sep 22
 
Replica of the Mutable Instruments Rings module.
Notes: After Later's redesigned take on the classic Mutable Instruments Rings module offers all the distinctive resonant synth sounds you'd expect, from strings to percussion. Great value.

Supplier notes:
This is an exact hardware replica of the Mutable Instruments Rings module.
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 1 in stock $200.20
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AJH Synth Ring SM Ring Mod Sub Bass Mixer Module (black)
AJH Synth Ring SM Ring Mod Sub Bass Mixer Module (black) (distortion/mixer/ring modulator/waveshaper synth module)
Cat: 625079 Rel: 22 Sep 16
 
Ring SM Ring Mod Sub Bass Mixer Module
MRP:$306.78 SAVE 15%
 1 in stock $260.48
TipTop Audio Forbidden Planet Analogue Filter Module (white)
TipTop Audio Forbidden Planet Analogue Filter Module (white) (CV modulation/effect/filter synth module)
Cat: 704130 Rel: 01 Oct 18
 
Multimode filter based on the Steiner-Parker design - 8HP
Notes: Welcome to the Forbidden Planet, an all analogue multi-mode filter design influenced by the 1975 Steiner-Parker Synthacon model. Control the Forbidden Planet manually or through CV and take the sound of your Eurorack into new orbits.

Forbidden Planet has three filter input jacks: High Pass, Low Pass and Band Pass. The High Pass section is this module's signature sound - a crisp sharp-cut with no residue, designed to add High Pass filtering capability to Tiptop Audio's wide range of Eurorack modules. Send a throbbing kick drum through the High Pass section and filter out the rumbling lows while maintaining the pulse of the beat. The Bandpass is clear and useful in isolating a pie-slice-range-of-frequencies while cutting off the low and highs, great for accurate sound design or sculpting audio into that sweet spot. The Low Pass is an airy classic 12db two-pole analogue slope ideal for monophonic synth patches and filtering down to the essential low-end bass we all love.

The Forbidden Planet Resonance utilizes an internal feedback path which can sound smooth or aggressive depending on the knob setting. At a low setting, it emphasizes the cut-off harmonics, at middle settings it begins to self-oscillate, and towards maximum setting it forms interesting tones and all sorts of chopped grainy bits of self-oscillation perfect for entering into a sci-fi world.

The Forbidden Planet is an impressive multi-mode analogue filter which adds a broader filter spectrum to the Tiptop Audio modular family and unlocks forbidden creative possibilities in a small package.
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 1 in stock $124.60
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Befaco Noise Plethora 4-Voice Algorithmic Noise Generator Module
Cat: 846576 Rel: 06 Dec 21
 
Triple noise generator with multi mode filters.
Notes: A typically comprehensive approach to noise sources from Befaco, featuring five different circuits plus two analogue multimode filters and plenty of CV controls for sculpting the output.

Supplier's Notes:
Noise plethora has three different noise generators:

The first two are identical and are composed of digital algorithms followed by a 12dB analog multimode filter.
Each program has two variables (Named X and Y) addressed by two manual controls and two associated control voltage INs.
Ships with an extensive (and expanding) algorithms library: textures, wave clusters, harsh noises, and glitches.

Generator C has three simultaneous outputs:

White. Flat Response Classic white noise.
Gritty. Granulous texture noise, with voltage-controlled grit quantity.
Filtered. Is the White or Gritty noise followed by a 24dB multimode VCF.

A total of 5 different noise sources in one module!

Dimensions:

14 HP
25 mm deep

Current Draw
110 mA +12V
67 mA -12V
0 mA 5V
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 1 in stock $314.31
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Doepfer A-103 VCF6 18dB Low Pass Filter Module
Cat: 692504 Rel: 18 Jun 18
 
18dB low pass filter based on a modified Moog cascade - 8HP
Notes: Module A-103 is a voltage controlled low pass filter with 18dB/octave slope. The circuit is based on a modified transistor ladder (Moog ladder) and is a reproduction of the legendary TB303 filter.

As for the rest the A-103 is identical to the A-120 Moog low pass filter (same controls, inputs/outputs) only the filter sound is different.
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 1 in stock $92.56
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Intellijel Morgasmatron Dual Multi-Mode Self-Oscillating VCF & Crossfaderr Module
Intellijel Morgasmatron Dual Multi-Mode Self-Oscillating VCF & Crossfaderr Module (distortion/dual/stereo/filter/ring modulator synth module)
Cat: 677563 Rel: 26 Feb 18
 
Dual multi-mode self-oscillating VCF & crossfader - 20HP
Notes: This is the third generation of Intellijel's much loved Korgasmatron filter designed in collaboration with David G. Dixon. The Morgasmatron features two completely independent six-mode filters (labelled "A" and "B") - each with its own mode-select knob, input, output, cutoff, resonance, Q-drive and gain control. Each filter has a pair of CV inputs (one with a built-in attenuator and the other with a built-in attenuverter) for modulating cut-off, and another CV input for modulating resonance. Both filters self-oscillate at maximum Q, and produce pitched sine waves that track the two separate 1V/OCT inputs.

You can use the two filters independently of one another, or you can use them together (in either a series or parallel connection) and smoothly crossfade between them using either the XFADE knob or the XFADE CV input and built-in attenuverter. You can flip the DRY switches to instantly bypass either or both filters; invert the phase of Filter B; or overdrive Filter A by switching on the new Overdrive circuit. A MIX output provides (as you might suspect) a mixed output of the two filters.
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 1 in stock $367.05
After Later Audio Benjolin V2 Dual Oscillator & Multimode Filter Module
Cat: 804979 Rel: 14 Jan 21
 
Dual oscillator/multimode filter module
Notes: Revised take on the excellent Benjolin dual oscillator and filter from Rob Hordijk, featuring the 'rungler' stepped CV generator and extensive output options.

Supplier's Notes:
Benjolin V2 - Rob Hordijk's latest revision of the classic Benjolin. The core of the Benjolin continues to be two oscillators, the rungler (stepped CV generator), and a multimode filter.

This latest revision adds:

Reworked oscillator and filter sections

All levels are adjusted to eurorack standards

Two different steps modes (8/16 and 127)

Double and single clock rate

Externally clockable

External filter input with blend control

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 1 in stock $320.77
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Xaoc Devices Katowice 1978 Stereo Variable Band Isolator Module
Xaoc Devices Katowice 1978 Stereo Variable Band Isolator Module (dynamics/equalizer/filter/VCA/dual/stereo synth module)
Cat: 797179 Rel: 10 Nov 20
 
Dynamics/equaliser/filter/VCA/dual & stereo synth module
Notes: Three-band isolator with stereo inputs and outputs, splitting the signal into highs, mids and lows then allowing you to control level and frequency via CV for some clever sound sculpting and modulation.

Supplier's Notes:
Katowice is a stereo variable-band isolator that allows the user to manipulate a selected range of frequencies. It is the first module in a series of upcoming Xaoc Devices products designed specifically for processing stereo signals.

Katowice splits the stereo input signal into three bands: low, middle, and high. While the knobs and CV inputs define the center frequency and bandwidth of the mid band, the low and high bands are automatically adjusted so that the sum of all three is a complete signal. All three bands are passed through high quality VCAs and their stereo outputs are available separately for further processing. A stereo mixdown signal is also available.

Katowice may be used as a crossover network, a parametric EQ, DJ-style kill filter, or other band-selective applications, including multiband compression and stereo enhancement.

TECHNICAL DETAILS:
Eurorack synth compatible
10hp, skiff friendly
Current draw: +100mA / -100mA
Reverse power protection
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 1 in stock $237.88
Erica Synths Pico VCF1 Polivoks-Inspired Voltage Controlled Filter Module
Cat: 686639 Rel: 30 Apr 18
 
Polivoks-inspired VCF - 3HP
Notes: Erica Pico VCF1, is a younger brother of Erica Black Polivoks VCF, designed on the similar topology using rare Russian op amps. As result you get a filter great for acid bass lines, screaming resonance sweeps and deep wobbles.

Features:
- Lowpass and bandpass modes
- Self oscillation
- Rare russian opamps used
- Input protection against overvoltage

Dimensions
3 HP
35 mm deep

Current Draw
12 mA +12V
11 mA -12V
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 2 in stock $95.53
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Supercritical Neutron Flux 8 Pole Variable Character Filter Module
Supercritical Neutron Flux 8 Pole Variable Character Filter Module (distortion/dual/stereo/filter/preamp/waveshaper module)
Cat: 790485 Rel: 15 Jan 21
 
Variable filter module
Notes: The Neutron Flux 8 Pole Variable Character Filter is a 12hp skiff friendly eurorack filter module with a stereo analog core and digital control over it. The controls are familiar filter module controls (cutoff, bipolar FM, mode, drive) with some added spice and no complexity.

The special stuff is in these controllable features:

Character: This control blends between five vintage influenced classic filter characters: Fat, Crisp, Liquid, Sour and Mean. Coming later in a firmware update, the Neutron Flux will also have two user banks for more specialized filter characters which can be replaced via audio update.

Overdrive: You can switch the drive circuit to have a +20dB boost and have the drive pot to sweep from clean via warm saturation to extremely hard distortion.

Stereo: This control spreads the cutoff between L and R channels and induces drift. This way a mono signal can be split into wide stereo.

Two 4 pole filter cores: These can be run in stereo, mono to stereo or chained as a 8 pole mono filter for almost LPG-like steep slope. Both of them have their own drive circuits so you can have the overdrive stage in the front, in between or both.

The module can be used in many different ways. It can do classic LP/HP/BP filtering. It can self-oscillate in different waveforms. It can provide analog warmth and process something coming out of your DAW. It can act as a stereo distortion. It can spread your mono signal to a wide spatial stereo soundscape. It can do formant stuff and other wild characters. It can do audio-rate deep FM (1V/oct and FM CV's are all analog).

Power consumption: 250mA at +12 V and 100mA at -12 V
Depth: 25mm
HP: 12
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Doepfer A-105-4 Quad Poly SSM VCF Polyphonic Filter Module
Cat: 676691 Rel: 21 Sep 18
 
Polyphonic filter with four identical 24dB Lowpass filters 8HP
Notes: A-105-4 is our first polyphonic filter and contains four
identical 24dB Lowpass filters (SSM2044 type). It has
available common manual controls and CV inputs with
attenuators for these parameters:

Frequency (F)

Frequency Modulation Intensity (FM)

Resonance (Q)

Audio Input Level (L)
Each filter has available a separate FM input as well as an Audio Input and Output. The FM input is typically connected to the output of the associated envelope generator (e.g. A-141-4).
The envelope amount for all four filters is controlled by the FM knob and the CVFM input by means of four built-in VCAs, which are controlled by the FM control and CVFM input. This allows also voltage control of the envelope amounts.

In addition common frequency modulation for all filters is possible (e.g. by an LFO). For this the CVF input with attenuator can be used. The range of the audio input level control (L) allows also clipping/distortion with typical A-100 audio levels
(e.g. from A-111-4) at the filter inputs. Even this parameter is voltage controllable as well as the resonance (Q).
Application: polyphonic patches (four VCFs with same parameters).
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 1 in stock $201.29
Doepfer A-101-2 LPG Vactrol Low Pass Gate Module (silver)
Doepfer A-101-2 LPG Vactrol Low Pass Gate Module (silver) (low pass gate/filter/VCA synth module)
Cat: 682314 Rel: 26 Mar 18
 
Vactrol based combination of resonant 12dB lowpass filter and/or VCA - inspired by the Buchla 292
Notes: A Low Pass Gate (LPG) can be a low pass filter, a VCA or a combination of both. This means both the harmonic content and volume can be controlled simultaneously which resembles the behaviour of many instruments: the louder, the more harmonics.

The A-101-2's mode of operation is set with a switch: left position is low pass, right is VCA and the combo mode is in the centre. Alternatively, you can activate the modes with gate signals which is the reason for two gate inputs; this is very interesting in combination with clock dividers or trigger sequencers.

- Gate 1 high & gate 2 low = low pass mode
- Gate 1 low & gate 2 high = VCA mode
- Both Gate 1 & 2 high = combo mode

The A-101-2 has an aggressive sound, compared to other LPGs and its resonance goes up to self-oscillation which not many LPGs offer. The oscillation is rather dirty and far from being a sine wave.

3U Eurorack module, 8HP wide, 50mm deep.
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 1 in stock $100.09
ALM MCFx2 Dual Multi-Mode Filter Module
ALM MCFx2 Dual Multi-Mode Filter Module (dual/stereo/filter synth module)
Cat: 860268 Rel: 14 Jan 22
 
The MCFx2 is a state variable ‘MCF’ filter made double.
Notes: The MCFx2 is ALM's state variable 'MCF' filter made double. It features 2 identical classic analog 3 pole state variable filter cores each with Low, High and Band Pass (or Notch) outputs. Direct and voltage control is provided for both filter cut offs and resonance. Switches allow the filters to function as one, with the 'Feed' switch internally routing audio from one filter to the other in series and the 'Link' switch linking the cut off controls for both filter cores. MCFx2 expands on the great sounding MCF filter to offer both serial and parallel functionality for stereo operation, dual peak, tighter slopes and other complex filtering set ups.

FREQUENCY CONTROLS
Sets the base frequency for the filter cut offs. The v/oct and frequency inputs are added to these.

RESONANCE CONTROL
Sets the level of resonant peaks atop the cut off frequencies. The resonance can get particularly aggressive going into self oscillation with the control past 12 o'clock.

OUTPUTS
Each filter output is 3 pole with an 18dB/oct slope.
Low - low pass filter outputs. Passes frequencies below the cut off.
High - high pass filter outputs. Passes frequencies above the cut off.
BP/Notch - band pass or notch filter outputs. Jumpers on the rear of the module select one or the other for each filter.
Passes frequencies within (BP) or outside (Notch) a narrow region around cut off frequency.

LINK BUTTON
Links the left cut off to parallel control both filters. The right controls will now set the max range of the right core. Both filters will track together when the right cut off is fully clockwise.

FEED BUTTON
Routes the output of the left filter core to the input of the right (unless patched), with the desired output filter type selected via jumper at the rear of the module.

FREQ INPUTS AND ATTENUATORS
Control voltage inputs here are combined with knob offsets to set the final cut off. Attenuversion control allows for both attenuation and inversion of the CV. Expects approx. -5V - 5V input.

RES INPUTS AND ATTENUATORS
Attenuated control voltage inputs here are combined with knob offsets to set the final resonance.
Expects approx. -5V - 5V input.

AUDIO INPUT 'In'
Signal inputs to the filter cores for processing.
Input sources may need to be attenuated, filter will drive from hotter input levels.
The Left input is normalised to the right (unless 'Feed' is enabled).
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 4 in stock $234.65
Endorphin.es Ghost Audio Processor Module (silver)
Endorphin.es Ghost Audio Processor Module (silver) (delay/digital/distortion/dual/stereo/dynamics/effect/filter/reverb synth module)
Cat: 880294 Rel: 05 Oct 22
 
In collaboration with ANDREW HUANG, based on his modern music production techniques ENDORPHIN.ES developed a creative audio processor with multiple blocks that can be moved around in order to achieve different flavors for sound design.
Notes: Collabing with YouTube sensation Andrew Huang, Endorphin.es offer up this impressive multipurpose processor module. Building blocks of stereo filtering, compression, reverb and more offer huge creative potential.

Supplier's Notes:
In collaboration with Andrew Huang, based on his modern music production techniques, Endorphin.es developed a creative audio processor with multiple blocks that can be moved around in order to achieve different flavours for sound design.

Processing unit without fixed structure: intuitively create astonishing and ephemeral timbres, from atmospheric rumbles to heavy or distorted textures.
Creative stereo effect processor with delay, reverb, filter and distortion with quickly explorable routing chain with single button press.
New generation ARM Cortex - M7 processor with 96 kHz 32 bit internal processing.
Lush hall and whooshing reverse reverbs with audio freeze and pre-delay.
Sidechain audio ducking envelope available both internally and externally with additional one knob single band compressor.
Tap delay with maximum delay time up to 2.5 seconds, external clock input with onboard clock divider and 1v/oct time control.
8x oversampled distortion algorithm.
Pre- and post - VCA, tone and volume controls with extra gain.

Power consumption
135 mA +12V
35 mA -12V
0 mA 5V

Dimensions
16 HP
26 mm deep with power ribbon cable connected.
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4ms Tapographic Delay Eurorack Module
4ms Tapographic Delay Eurorack Module (delay/digital/effect/dual & stereo/filter/reverb eurorack module)
Cat: 669145 Rel: 28 Jan 18
 
Complex multi-tap delay - 18HP
Notes: The Tapographic Delay is a complex multi-tap delay in the Eurorack format with a unique interface designed for live performance. It excels at transforming the simplest audio (a drone, a percussive sound) into complex rhythmic structures, meshes of organic textures, lush harmonic mille-feuilles, liquid and resonant effects.

Have you ever got tired of the monotonous repetitions that your standard delay pedal/module produced? Have you ever wished for a more complex rhythmic structure than just decaying repetition? If yes, you have come to the right place: the Tapographic Delay is an advanced effect that lets you handle repetition in a completely novel way. It is to a traditional delay what a full rhythmic sequencer (with pattern recall, velocity control, tactile input) is to a simple clock. With the TD, you interactively define the rhythm that the repetitions will follow: a velocity-sensitive sensor allows you to record, edit, modify, and sequence your own arrangements of delays. In a sense, the TD is the converse of the classic Frippertronics sound-on-sound setup popularized by Robert Fripp in the 70's: you don't play the guitar, you play the tape loop!

The Tapographic Delay is an expressive experimental instrument meant to be played in real-time, rather than a set-and-forget end-of-chain effect. Interact with it! Experiment! Push it to its limits!
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 1 in stock $343.37
Verbos Electronics Noise & Filter Noise Generator & 4-Band Fixed Filter Bank Module (black)
Cat: 760206 Rel: 17 Jan 20
 
noise & filter module
Notes: A simple noise generator and 4 band fixed filter bank.

The noise is normalled to the Filterbank input. The cutoff frequencies are matched to the Bark Filter, so that four bands of the Bark Filter correspond to a band on the Noise & Filter.

It is a small and quick noise source and pairs well with Scan & Pan and Amp & Tone.

HP : 4
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After Later Audio Popple Multimode Stereo Filter Module
Cat: 805174 Rel: 14 Jan 21
 
Stereo multimode filter module
Notes: Popple is an 8hp multimode stereo filter based on the Mutable Instruments Ripples V1 filter section. Popple maintains the buttery smoothness of Ripples filter while giving you two separate audio paths. The audio paths share a resonance, control, a frequency cutoff control, resonance CV input, and a v/oct cutoff CV input. Each channel then has it’s own cutoff CV input with attenuverters (which are normalled to a 2.5V signal).

Popple will also self-oscillate at high resonance settings, when coupled with the v/oct CV control, it can also act as a dual sine wave oscillator.
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After Later Audio Filthy Multimode Filter Module
After Later Audio Filthy Multimode Filter Module (filter/oscillator synth module)
Cat: 805057 Rel: 14 Jan 21
 
Multimode filter module
Notes: A multimode filter offering LPF, BPF, HPF, and NOTCH simultaneous outputs in 6HP.

Low pass filter (4 pole)

Band pass filter

High pass filter

Notch filter

Two audio inputs

Two FM inputs with an attenuverter for FM1

v/oct tracking for cutoff CV

CV over Resonance

Resonance will reach self-oscillation

Size: 6hp
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Xaoc Devices Deva 1970 Feedback Loop Commander Module
Xaoc Devices Deva 1970 Feedback Loop Commander Module (dual/stereo/expander/filter/VCA synth module)
Cat: 945644 Rel: 05 Jul 23
 
An expander module for Xaoc Devices Timiszoara multi-fx in 8HP.
Notes: Add external feedback loops, tilt filters and more to the Timiszoara effects module with this versatile expander. A must-have for Timiszoara owners.

Supplier's Notes:
Deva is an expander for Xaoc Devices' Timiszoara multi-fx module designed for creative exploration of the dirty/nasty side of signal processing. Deva opens up the Timiszoara programs you've come to love with some unexpected twists and turns along the way. The analog side features two external feedback loops (for the left and right channel) with tilt filters adjustable via sliders with two additional switches for choosing positive or negative feedback (for each channel). The third slider controls the DAC clock - from overclocking by a factor of two down to 16-times slower, so you can go from chipmunk to hardcore teeth gnashing of underclocked goodness. A switch allows for turning the clock control off for normal/regular operation. All features have inputs for external CV.

Technical details

Eurorack synth compatible
8hp, skiff friendly
Power drawn from Timiszoara: +60mA/ -50mA
Reverse power protection

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 1 in stock $165.76
Doepfer A-108 6/12/24/48dB Low Pass Filter Module
Cat: 692510 Rel: 19 Jun 18
 
Classic Moog voltage-controlled lowpass filter - 12HP
Notes: Module A-108 is a completely new voltage-controlled low pass filter based on the well-known transistor ladder (Moog ladder). The module has internally an 8-stage low pass filter with different slopes available: 6, 12, 18, 24, 30, 36, 42 and 48 dB per octave. In addition, it features a band pass output (i.e. band pass with transistor ladder). In the factory, the 4 low pass outputs of the A-108 are internally connected to the filter stages 6, 12, 24 and 48dB.

Resonance (Emphasis or Q) can be adjusted manually right up to self-oscillation, in which case the filter will behave like a sine wave oscillator. The A-108 features an external feedback input that enables the insertion of additional modules into the feedback path (e.g. VCA for voltage-controlled resonance or phaser/frequency shifter for phase/frequency shifting effects). The socket is normalized and internally connected to the 48dB low pass output if no cable is inserted into the feedback socket.

The frequency can be adjusted manually, or by voltage control. Three CV inputs (CV1, CV2, CV3) are available. CV2 and CV3 are equipped with attenuators.

The filter audio input is very sensitive so that distortion - if desired - is possible even with normal A-100 levels (e.g. VCO output). Self-oscillation will break off at high distortion levels as the internal feedback signal is drown out by the distorted audio signal. This feature may intentionally be used to create new sounds.

In combination with the Voltage Controlled Mixer A-135 and the Morphing Controller A-144 a filter with voltage-controlled slope can be realized (i.e. controlling the slope from 6dB to 48dB via CV).
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 1 in stock $144.23
NANO Modules FONT Massive Sounding Liquid Filter Module
Cat: 796875 Rel: 20 Nov 20
 
Voltage-controlled filter/sine oscillator module
Notes: FONT is a massive sounding liquid filter- designed to bring you powerful basslines, tons of FM modulation and a clean resonance over your audio path.

It features two simultaneous outputs:
2-pole Low Pass
2-pole Band Pass

It can also work as a sine oscillator, tracking 1V/OCT when the resonance is at its maximum level.

FONT can be used to make basslines, acid patterns thanks to its organic and musically sounding resonance.

Ping it to produce percussion sounds such as, bongos, congas or toms.

Applying a pitch envelope, it really shines as a kick-drum machine!

22 mA +12V
25 mA -12V
0 mA 5V
15 mm deep
O 4.60 (10 Votes) Average Rating
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Dreadbox Dystopia Noise-Crush-Filter Module
Dreadbox Dystopia Noise-Crush-Filter Module (filter/noise/random filter module)
Cat: 809408 Rel: 20 Jan 21
 
Noise-crush-filter module - 10HP
Notes: The Dystopia is ideal for complex patches where sound can be used to thicken the sound or filter out frequencies. It features a noise generator which can provide white, white to pink, white to blue, scatter, digital, pitch types of noise. The digital noise is brilliant as it can be used as a random gate generator. The bit crusher stage can range from one second up to 8kHz - meaning you can obtain really thick distortions - ideal for a range of styles of music. You can reference all the signals through the four LEDs too - which help you determine the level at which the module is pumping out the noise sources.

Noise Generator (white, white to pink, white to blue, scatter, digital, pitch)
Bit Crusher with range from 1sec up to 8kHz
Digital Noise can also be used as a Random Gate Generator
Dual Filter (parallel) 12dB Low Pass and High Pass Filter
When you insert a signal to the External In, the Internal Noise generator is cancelled and the External Signal is in process
LED indicator for all controls to illustrate the current CV Sum

56 mA +12V
67 mA -12V
35 mm deep
10HP
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 1 in stock $82.36
Serge Variable Q VCF Multi-Mode Filter Module
Serge Variable Q VCF Multi-Mode Filter Module (filter/LFO/oscillator module)
Cat: 757125 Rel: 15 Oct 20
 
Variable resonance filter module - 14HP
Notes: The Variable Q VCF (or VCFQ, for short) from Random Source is a skiff-friendly Eurorack adaptation of what is perhaps the most famous Serge filter. It is an effortlessly thick and colorful 12dB/oct multimode filter with ultra-smooth resonance that never ceases to amaze. Amazing tonal variety comes from combining outputs, automating resonance settings via CV, and adding grit using its adjustable-gain input.

Simple filtration is only one of the VCFQ's many uses, however. Its amazing trigger input turns rising-edge pulses into thick analog kicks and toms which roughly track notes thanks to a dedicated 1V/oct input. This module also becomes an ultra-powerful modulator in "Lo" mode, with decaying/syncable LFOs well within grasp using the trigger input, along with free-running oscillation when self-patched. When fed stepped sequences, sample and hold, or other LFOs, the VCFQ can even function as an effective slew limiter. And that's not all: for those lucky enough to own two VCFQs, dual-peak resonance and an ultra-thick 24dB/oct low-pass mode offer some of the most rewarding synth sounds in existence. In short, adding a VCFQ to one's Eurorack system is always worthwhile.

Features

Analog multimode filter designed in collaboration with Serge Tcherepnin
Automatic Gain Compensation and Variable Gain audio inputs
Trigger input
1V/oct and attenuverted frequency CV inputs
Attenuated Q CV input
Low Pass, Hi Pass, Bandpass, and Notch outputs
Hi/Lo range switch
This is the skiff-friendly, SMD version of the Random*Source VCFQ

Under licence from Serge Tcherepnin
Designed for High-end VCAs (THAT2180)
No matching of transistors required
No wiring needed

Dimensions
14 HP
26 mm deep

Current Draw
52 mA +12V
52 mA -12V
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Vermona TwinVCFilter Dual Multimode Filter Module
Vermona TwinVCFilter Dual Multimode Filter Module (filter/mixer/dual/stereo synth module)
Cat: 662842 Rel: 18 Sep 17
 
Dual filter module with flexible routing & excellent audio properties - 24HP
Notes: There is almost no modular system without at least one filter-module. You can look at them as the stars within the giant Eurorack-jungle. twinVCFilter is such a star as well. A dual filter module with flexible routing and excellent audio properties. It covers a huge range of different applications without the slightest effort.

Features and Routing:

Each filter section of twinVCFilter works as low- or highpass-filter with a slope of 12 dB/octave or as bandpass-filter with 6 db/octave. Signals can be directed in three ways through the module:

- Serial: The incoming signal passes both filter sections in a row.
- Dual: The filter sections act completely separated of each other. As if they were two individual filter modules.
- Parallel: The incoming signal passes both filters at the same time.

With these routings you can i.e. generate bandpasses or notches with variable slopes and different resonance settings or doubling the filter's slope. These are the more obvious combinations but there is a lot more to discover.

The convenient link-feature allows to couple cutoff- and resonance of both filter sections for straightforward stereo use in dual mode.

Mix section:

The flexible signal-routing is supplemented by the mix-section. Here you can crossfade both filter sections manually or by control voltages. Seamless movements from low- to highpass-filter, is as easy as crossfading from half to doubled slope. Of course you can mix two completely individual signals or toggle between them by using a rectangle-LFO-modulation.

Resonance:

Resonance is a key factor in the context of sound-shaping and sound-generation using a filter. Therefore we carefully trimmed twinVCFilter's resonance to be as musically and stable as possible. You can apply subtle frequency-dependent emphasis to signals and tear them up to self-oscillation. The latter generates a solid sine-wave which is an excellent base for percussive sounds. Possible cross-modulations significantly enhance the sound-generator features. By the way: If you are missing a vibrato-LFO in a patch, twinVCFilter can do the job.

twinVCFilter offers a huge set of features to form impressive soundscapes. It can take subtle influence to signals or massively truncate frequencies. It leaves nothing to be desired. Despite, for those who need additional possibilities we especially designed the tVCF-Extension module.
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Tangible Waves AE Modular MS20 FILTER Module
Cat: 786479 Rel: 19 Oct 20
 
Filter module
Notes: The famous MS 20 filter for AE modular!

This adaptation of the filter used first in Korg's MS-20 synth for AE modular offers control knobs for cutoff frequency, resonance and CV attenuator. Two signal inputs for different signal levels control the "drive" of the module. Compared to the wasp filter this filter has a significant self resonance and also a very quick response to changes in the cutoff frequency.

The filter type is switchable between lowpass and highpass (LP/HP switch).
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After Later Audio Quarks Elements Redesigned Module
After Later Audio Quarks Elements Redesigned Module (filter/multiple/oscillator synth module)
Cat: 910113 Rel: 21 Nov 22
 
A 22hp version of Mutable Instruments Elements.
Notes: A 22hp version of Mutable Instruments Elements. It is functionally equivalent and therefore runs all firmware options and having identical sound characteristics. This version is great compromise between the tight spacing of Atom and full size original, which is a bit large.

Width: 22hp
12V: 130mA
-12V: 10mA

Module power connector can be connected either way on the module side.
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Klavis Grainity Digitally-Controlled Full-Analogue Path Granular & Multi-Mode VCF Module (silver)
Cat: 934965 Rel: 19 Dec 23
 
Digitally-controlled full-analogue path granular & multi-mode VCF module in 10HP.
Notes: A unique analogue take on granular synthesis, inspired by Yannis Xenakis, the Grainity pairs a granular filter with a multimode filter to create new textures and harmonics.

Supplier's Notes:
The Grainity brings a unique and never-heard-before concept to the world of analogue VCF.

While being based on analogue filtering only, the Grainity expands and enriches the sound in creating subharmonics, harmonies, unison, flanging effects and formant filtering all at once.

The module presents two sections, the granular filter itself and a typical multimode filter, each with its own output.

A third output offers a mix of both filter paths. Numerous controls and CV allow a very wide palette of results.

What is the Grainity

Granular?

The word granular was chosen for this filter module in relation to the concept invented by the composer Yannis Xenakis, and which is described as assembling small chops of sounds - he called grains - according to a pattern.

This is exactly what the Grainity does, no more no less ... but, digital control allows doing it in ways that are decades away from what tape and scissors allowed at the time.

Technology wise ...

In the granular section, the incoming sound cycle is determined in order to step through various filtering and phase variations of itself according to predefined patterns called structures.

The controls allow alterations to the cycling phase, cycling frequency offset (tuning), structure selection and frequency division of the filters cycling. This comes in addition to the usual filter frequency and resonance controls.

What the Grainity is not

Technology wise ...

Despite relying on a microprocessor, the Grainity is not a digital audio processor. At any time, the sound remains in the analog domain and goes through analog circuits from in to out.
The digital processor does not convert or generate audio signals; it is there to control the analog circuitry and manage the interface and display.

Sound wise ...

Several digital modules offering granular processing rely on the layering of sound grains, which leads to blurry and cloudy textures.
Layering of the grains is a late addition to the concept of granular synthesis and is not a mandatory feature of the concept.
The Grainity does not use delay lines or sampling memory but is nevertheless true to the foundations of the granular synthesis concept.

The granular VCF in the Grainity is unconventional in that, most of times, it is not filtering the sound in the common expectation of removing something. Typically, the granular process adds more than it removes by expanding both the lower range, creating subharmonics, and the upper harmonic contents in multiples ways.

Dimensions
10 HP
21 mm deep

Current Draw
101 mA +12V
59 mA -12V
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 3 in stock $265.87
After Later Audio Razor Blades Redesigned Module
After Later Audio Razor Blades Redesigned Module (distortion/filter/waveshaper synth module)
Cat: 910116 Rel: 21 Nov 22
 
This is an exact hardware replica of the Mutable Instruments Blades module.
Notes: This is an exact hardware replica of the Mutable Instruments Blades module.

This model uses the original "hard-to-find" opamps, but After Later have substituted V2164M with AS2164D. All of After Later's products use AS2164D and there should be no measurable change in behaviour.
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 1 in stock $304.62
ADDAC System ADDAC603 VC Triple Bandpass Filter Module
ADDAC System ADDAC603 VC Triple Bandpass Filter Module (distortion/filter/VCA synth module)
Cat: 776351 Rel: 08 Sep 20
 
Triple bandpass filter module
Notes: The ADDAC603 VC Triple Bandpass Filter provides three channels of bandpass filters, fantastic for sculpting complex sounds. Each of the channels feature a gain/distortion control with switch to select between x3 or x100 gain, which can cause the input signals to distort, adding another layer of harmonic interest.

The inputs are cascaded together to allow for one source to be filtered three different ways - or each filter can be used independently. The three filters also feature controls for frequency, which sets the cutoff point; width, which sets the width of the band that is being filtered; feedback, which at high settings causes the filter to self-oscillate, and level control, which sets the amplitude of the output. Frequency, bandwidth, and output level each have CV inputs with attenuverters.

A switch sets whether the filter is 24 dB or 12dB per octave. There are individual outputs with phase switch, plus a mix output and dry/wet output with adjustable control for mix balance. This module provides a wide variety of filtering options to add complex tonal shaping to your rack.

Tech Specs:

22HP
3.5 cm deep
250mA +12V
250mA -12V

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 2 in stock $406.87
Maneco Labs Grone 2 Dark Drone Machine Module
Maneco Labs Grone 2 Dark Drone Machine Module (delay/filter/LFO/noise/oscillator/reverb module)
Cat: 864847 Rel: 22 Mar 22
 
Dark Drone Machine
Notes: Evolved version of Maneco's drone synth uses an oscillator based on equations, a Korg MS20-inspired filter and built-in reverb. Check out the Grone Expander for added touch-sensitive controls.

Supplier's Notes:
Dark Drone Machine

Generates sound based on equations converted to analog signals, there are sixteen equations selected by Up and Down switches. Four LEDs indicate equation number in binary mode. Three Pots modify numbers used by the equation, A0, A1 and A2, fourth pot Sample Rate controls pitch and speed of the oscillation. There's an Output Level pot for the oscillator and a dedicated jack for patching the Oscillator sound to external modules.

NOISEGENERATOR:

White noise with noise level pot and noise output jack.

VCF:

MS20 resonant low pass filter, with CUT frequency pot control, RESONANCE, MODULATION1 amount pot, input and output jacks and second cv input for cutoff, labeled MOD2

LFO1:

Low frequency oscillator routed to MOD1 from VCF, RATE and WAVEFORM shape Pots.

Also routed to delay block1

Waveforms are: ramp up, ramp down, square, triangle, sine, sweep, random levels, random slopes

EffectsSection:

Delay with tap tempo and reverse component: controls for delay time, delay feedback, delay level and reverse component, tap tempo input jack for external control

Reverb with freeze button, controls for reverb level and reverb decay, input jack for freeze function
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Qu-Bit Tone Quad Voltage Controlled Filter Module (black)
Qu-Bit Tone Quad Voltage Controlled Filter Module (black) (filter/oscillator/quad synth module)
Cat: 754307 Rel: 28 Oct 19
 
Quad voltage controlled filter module - 18HP.
Notes: Tone is a quad, voltage controlled filter with low pass and band pass outputs. Its four channel architecture enables the intuitive patching of shimmering, polyphonic textures. The 24dB slope provides a warm, buttery character. Self oscillation allows each channel to double as a sine wave oscillator with v/oct tracking across four octaves. Cascade OTA topology. A perfect match for the Chord.
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Doepfer A-101-6 6-Stage VC Opto-FET Filter & Phaser Module (silver)
Cat: 682323 Rel: 26 Mar 18
 
6-stage VC Opto-FET filter/phaser - 8HP
Notes: A-101-6 is a new filter module that uses so-called opto FET's to control the filter frequency. Opto FET's are very similar to Vactrols, but use light dependent field effect transistors (FET's) instead of light dependent resistors (LDR's). An opto FET is a combination of a light-dependent FET and an LED, both put into a small light-proof case. The advantage, compared to vactrols, is a much faster response of opto FET's compared to LDR's - this allows much faster attack/decay times and even FM effects.

The variable resistors corresponds to the opto FET. The brightness of the Opto FET LED's, and consequently the filter frequency, can be adjusted manually (Frequ. control) and controlled by means of an external control voltage (CV) with attenuator. The LED at the front panel reflects the LED brightness inside the opto FET's.

The type of filter is chosen by jumpers on the PC board (factory setting: low pass). The type of filter determined by the jumpers positions can be marked by means of a water-resistant felt pen at the front panel.

The resonance is controlled by the Feedback control up to self-oscillation. By means of a trimming potentiometer the maximal feedback can be adjusted. High feedback values can be used mainly in the all-pass mode to obtain very extreme self-oscillation sounds. Even an external feedback signal can be used instead of the internal feedback connection (FB In socket). Whenever the filter type is changed by means of the jumpers the trimming potentiometer for the maximal feedback has to be re-adjusted.

The Mix control is used to pan between the original signal (CCW position) and the effect signal (CW position). In filter mode (LP/HP) this control is usually set fully CW. In the all-pass modes one obtains phasing sounds at centre position or "pure" all-pass sound in fully CW position.
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Frap Tools Cunsa Quad Analogue Pingable Multi-Mode Resonant Filter/Saturator/Mixer/Oscillator Module
Cat: 945399 Rel: 28 Nov 23
 
A quadruple analogue pingable multimode resonant filter, saturator, mixer and oscillator module in HP.
Notes: Oof. Frap casually serve up one of the best filters we've seen in a long time. Quad multimode circuits with saturation and feedback give you extensive routing options. Delicious.

Supplier's Notes:
cunsa /'cu?nsa/ s.f. [dialect of Modena of uncertain etymology, probably from a Latin *comptiare, derived from comptus, participle of comere 'organize,' 'decorate'] i curing, seasoning (of foods), tanning (of leathers).

Seasoning is crucial for cooking. It is a process that enhances the flavors, glues the ingredients together, and even adds some unexpected kick.

From a gentle refining touch to a shovelful of spice, CUNSA is the perfect seasoning tool for your patches. It can sweeten a sour lead or beef up an insipid bass line, and anything in between.

And, just like a good oil, you can even taste it by itself!

CUNSA is a quadruple analog pingable multimode resonant filter, saturator, mixer, and oscillator.

It is Frap Tools' sound seasoning tool: it can gently even a patch, applying a final touch, or it can set it on fire with a ridiculous amount of spice. It's up to you and your cooking style!

It consists of four multimode resonant filters with a custom saturation and feedback control that you can use independently or in various combinations and roles thanks to a series of seminormalizations.

Four Analogue Resonant Multimode Filters

CUNSA features four state-variable filters that can be used independently or linked and mixed. Each filter provides three behaviors simultaneously: lowpass, bandpass, and highpass. Each behavior has a 12 dB/oct slope, except for the lowpass, which can be either 12 or 24 dB/oct.

Unique 'Character' Circuit for Feedback and Distortion

CUNSA handles feedback and gain staging with extreme control and versatility. Besides the usual Q control that emphasizes the cutoff frequency, the Character circuit defines the amount of soft clipping when the filter overloads. High clipping guarantees a controlled behavior with fat tone and pure resonance, while low or no clipping lets the signal saturate the filter stages and make it scream.

V/oct Tracking and Quadruple Oscillator

Each filter responds to the V/oct signal with excellent tracking. It is thus possible to move the cutoff frequency along with the main melody or make CUNSA resonate with no input and transform it into a multiple oscillator. The V/oct inputs are seminormalled so you can control more filters with the same CV. Easy chords stabs!

Ping and Ring

CUNSA is ideal for percussive and organic tones. The Ping circuit offers a behavior similar to the BRENSO but AC-coupled. Instead of shooting the frequency to the moon with any trig, CUNSA gently responds to different incoming gates with a selectable decay curve. The Ping circuit can thus create natural decay sounds when fed with trigs or smoother envelopes with any other voltage, like a linear integrator with a custom decay.

Besides this, you can also feed the filter's audio input with trigs and make it ring at high Q settings.

Linked or Individual Filtering

The four filters can work independently or arranged in groups through seminormalled inputs and sum outputs. CUNSA can thus be a 4×1, 2×2, or a massive 1×4 filter. Even odd configurations are possible, like 1+2+1 or 3+1. Mono, stereo, or quadraphonic audio is at your fingertips.

Filter and Combo Behaviour

When the filter behavior is set to COMBINED, every control of the cutoff frequency also affects the input VCA, reducing the signal amplitude and saturation as it approaches the lowest range. It can make organic decays with the ping circuit or tame the low range at high Q and Character settings.

Four Seminormalizations for Group Use

Four inputs have a cascaded seminormalization: audio inputs, VCA CV, V/oct, and Ping. Every signal patched to a filter will thus feed also those at its right, making simultaneous use even simpler. To remove a seminormalization, simply patch a dummy cable to the corresponding input.

Analog Mixing Stage and Group Outputs

Every filter output can be routed to an analogue mix bus that sums the four filters and outputs them in three combinations: all, 1+2, and 3+4. These outputs allow for versatile audio processing. Just like we did with FUMANA, we added a gentle shelving EQ for the higher frequencies of the All output to provide additional timbral variety.

CV Inputs with Attenuators

Besides the seminormalled inputs, every filter features additional CV inputs for cutoff frequency, Q, and Character, each with a dedicated attenuverter.
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TipTop Audio Forbidden Planet Analogue Filter Module (black)
TipTop Audio Forbidden Planet Analogue Filter Module (black) (CV modulation/effect/filter synth module)
Cat: 886449 Rel: 22 Jul 22
 
The Forbidden Planet is an all analogue multi-mode filter design influenced by the 1975 Steiner-Parker Synthacon model.
Notes: Welcome to the Forbidden Planet, an all analog multi-mode filter design influenced by the 1975 Steiner-Parker Synthacon model. Control the Forbidden Planet manually or through CV and take the sound of your Eurorack into new orbits.

Forbidden Planet has three filter input jacks: High Pass, Low Pass and Band Pass. The High Pass section is this module's signature sound - a crisp sharp-cut with no residue, designed to add High Pass filtering capability to Tiptop Audio's wide range of Eurorack modules. Send a throbbing kick drum through the High Pass section and filter out the the rumbling lows while maintaining the pulse of the beat. The Bandpass is clear and useful in isolating a pie-slice-range-of-frequencies while cutting off the low and highs, great for accurate sound design or sculpting audio into that sweet spot. The Low Pass is an airy classic 12db two-pole analog slope ideal for monophonic synth patches and filtering down to the essential low-end bass we all love.

The Forbidden Planet Resonance utilizes an internal feedback path which can sound smooth or aggressive depending on the knob setting. At a low setting, it emphasizes the cutoff harmonics, at middle settings it begins to self oscillate, and towards maximum setting it forms interesting tones and all sorts of chopped grainy bits of self-oscillation perfect for entering into a sci-fi world.

The Forbidden Planet is an impressive multi-mode analogue filter which adds a broader filter spectrum to the Tiptop Audio modular family and unlocks forbidden creative possibilities in a small package.

Size: 8HP
Depth: 30.5mm
Power: +12V 10ma / -12V 10ma
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Maneco Labs Grone Dark Drone Generator Module
Maneco Labs Grone Dark Drone Generator Module (distortion/dual/stereo/effect/filter/noise/oscillator/reverb synth module)
Cat: 865913 Rel: 23 Mar 22
 
Maneco Labs Grone eurorack version of Dark drones.
Notes: Dark Drone Generator

Maneco Labs Grone eurorack version of Dark drones.

Generator Blocks description:

Drone VCO: Generates sound based on equations converted to analog signals , there are sixteen equations selected by Up and Down switches. Four leds indicate equation number in binary mode. Three Pots modify numbers used by the equation, A0 , A1 and A2 , fourth pot Sample Rate controls pitch and speed of the oscillation. There's an Output Level pot for the oscillator and a dedicated jack for patching the Oscillator sound to external modules.

NOISE GENERATOR: White noise with noise level pot and noise output jack.

VCF: MS20 resonant low pass filter, with CUT frequency pot control, RESONANCE

MODULATION 1: amount pot , input and output jacks and second cv input for cut off , labeled MOD2

LFO: Low frequency oscillator routed to MOD1 from VCF , RATE and WAVEFORM shape pots.

Waveforms are : ramp up, ramp down, square, triangle, sine , sweep, random levels, random slopes.

CLOUDS: based on MUTABLE INSTRUMENTS eurorack module , with parasites firmware ,same controls from MI : Input gain, position, size, density, pitch, texture, blend, switches for blend parameter and load/save, freeze control with indicator led, same display as MI original,Dedicated audio input jack (mono) stereo output and control inputs for V/OCT and TRIGGER.

Drone, Noise, Filter, with LFO incl. a Clouds
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Analogue Systems RS-500N Synthifilter EMS Synthi VCF Module (silver)
Cat: 777032 Rel: 26 Jun 20
 
Genuine EMS Synthi filter.
Notes: Genuine EMS synthi filter, with redesigned faceplate!

This legendary filter can be switched between pre1974 and post 1974 filter type and response. For the first time response can be voltage controlled which was designed on the circuit board but not available on the matrix. This module is made under license from EMS. The only officially licensed remake of the EMS diode lowpass filter used in the VCS3 and AKS synths. It´s a faithful recreation of the original circuit, featuring some modifications that are also done on vintage EMS equipment, like a switchable faster CV response option for very quick modulations. Another switch determines if the filter has 18dB/oct slope as used by EMS pre-1974 or 24dB. The cutoff frequency and also the resonance are voltage controllable. Signal inputs and outputs have level controls.
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 1 in stock $235.74
TouellSkouarn Strakal Brulu Germanium Dual Fuzz/Overdrive Module With Morphing
Cat: 642592 Rel: 24 Apr 17
 
Handmade distortion & fuzz module - 8HP
Notes: TouellSkouarn Strakal Brulu is a handmade distortion and fuzz module. The great sound is due to the new-old-stock east-German germanium transistors.

Very characteristic for the module's sound if the feedback that is coupled to the feedback. The more fuzz, the more feedback - the Strakal Brulu 2 can get pretty nasty and it screams a lot at high fuzz settings and low input level. The fuzz amount can be voltage controlled, with an inverse attenuator. Input and output levels can also be set separately.
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 1 in stock $214.20
Serge Variable Bandwidth Filter (VCF2) Module
Cat: 851485 Rel: 16 Nov 21
 
Variable bandwidth bandpass filter module - 18HP
Notes: From one of the most iconic names in modular synthesis, the Variable Bandwidth Filter is a unique design, combining two state-variable VCFs with extensive CV control for clean, versatile filtering.

Supplier's Notes:
The Serge Variable Bandwidth Filter (VCF2) is probably the rarest classic filter in the Serge system, offering a unique combination of 2 filters. According to the 1983 Serge catalogue, the Variable Bandwidth VCF (VCF2) "has a band-pass output which can be varied manually or with voltage control. This is a standard response synthesizer VCF, typical to filters used in many studio systems. In the VCF2, two state-variable VCF's are connected in series to produce a total of five outputs. High pass, low pass, two fixed bandwidth outputs, and one variable bandwidth output are available. The outputs are all flat-response (no resonance) so the VCF2 is suitable for processing concrete sounds without introducing resonant coloration to the timbres. Under voltage or manual control, cut-off frequency of the high and low-pass outputs are affected, as well as the center frequency of the two band-pass outputs. Both center frequency and bandwidth are independently controllable on the variable bandwidth output."

Now - for the first time, designed and licenced by Serge - the VCF2 is available as a eurorack module. A new switch has been added which determines if the CV-controls are routed to the first (left), second (right) or both filters, bringing even more sonic options than the original.

Some details of the Random Source Serge VCF2 module:

Original Serge design, under licence and in cooperation with Serge Tcherepnin
Uses for High-end VCAs
Eurorack format (3U), 20 hp
Power consumption: 45mA @ +12V, 45mA @ -12V
Module depth: < 30mm (1.2")
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After Later Audio Waves Liquid Filter Module
Cat: 916827 Rel: 16 Dec 22
 
This is an exact hardware replica of the Mutable Instruments Ripples module.
Notes: This is an exact hardware replica of the Mutable Instruments Ripples module.

Width: 8hp
12V: 35mA
-12V: 35mA
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MRP:$209.90 SAVE 15%
 1 in stock $177.60
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