Stereo / dual peak filterIkarie is a uniquely sculpted, flexible stereo or dual peak filter module. It can continuously transition between lowpass and highpass filtering with a single knob. It also packs in an envelope follower for the incoming audio signal, which comes in handy when you're looking ..
The BF-22 VCF is a dual Hi/Low-pass filter inspired by the Sallen-Key filter from the early MS-20.FEATURESThe module features attenuverters (inverter-attenuators) as an addition to the normal CV control for Cutoff and Resonance, and offers a little more presence in the Resonance than the original. T..
Space-conscious lowpass filter and volume processor.A combination of VCF + VCA + Mixer that lets you mix three different sound sources, and shape their tone, and levels in a breeze.The Pony Filter is built around the SSI2144 FATKEYS™ Chip. Has the elegant sound of the classic transistor fi..
Aphelion Stereo distortion and filterAphelion packs a stereo distortion and low/high pass filter into a compact 8HP design.It features three unique stereo distortions in parallel with a continuous crossfade between them, controlled with the character knob or a cv input.The first circuit is an o..
Mr. Phil Ter isn’t the smartest name for a module that has an envelope generator, VCA, and a filter in it. Well, we never claimed to be smart. Mr. Phil Ter, or Phil as we affectionately call it, is a module that does a whole bunch of analog and digital stuff, in not a lot of HP. Phil’s digital bits ..
The updated "skiff friendly" design of the MML Filter now features bipolar "attenu-verters" for the CV controls as well as an all new RED MODE!This new mode activates a feedback distortion circuit capable of actually changing the pitch of the notes coming in to the filter in a musical way that adds ..
Module A-101-1 is a special multitype filter based on an idea by Nyle A. Steiner (published in Electronic Design, issue 25, December 1974, page 96 ff). The circuit uses the standard non-inverting amplifier filter design. Different filter types (low pass / LP, band pass / BP, high pass / HP) ar..
A-101-2 is a vactrol based combination of Low Pass filter (LP) and VCA and was inspired by the Buchla module 292. The term "Low Pass Gate" was created by Don Buchla and stands for a module that can be switched between low pass and VCA. The control (manually and via external CV) is responsible for fr..
A-101-6 is a new filter module that uses so-called opto FETs to control the filter frequency. Opto FETs are very similar to Vactrols but use light depending field effect transistors (FETs) instead of light depending resistors (LDRs). A opto FET is a combination of a light de..
Module A-102 is a reproduction of the legendary low pass filter design that uses diodes in the filter stage as frequency controlling elements resulting in "strange" resonance behaviour and frequency response as resonance and frequency are not independent from another.As for the rest the A-102 i..
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, ..
A-104 is a fourfold formant filter as used in the Mixtur Trautonium by Oskar Sala.It is made of four parallel resonance filters, each filter can be switched to low pass or band pass or off. Frequency, resonance and level are controlled for each filter separately (no voltage control). The frequency r..