Legacy

Description This is replica of the 5-pole diode filter in the Roland SH-3 mono synthesizer. The original filter was quite a simple and basic design copied from the EMS VCS3. Roland used a variety of early Op Amps, including the low quality 741 and 1458, and a very old 14-pin dual Op Amp the NEC UPC33C...

This module is a unique and very powerful diode ladder VCF, which has three different modes selected by a front panel slide switch: Low Pass Band Pass High Pass All three modes have voltaged controlled frequency modulation. Frequency Cutoff and Resonance can be adjusted and there are 2x audio inputs...

This is a VCA module similar to the design in the Roland SH-5 monophonic synthesizer introduced in 1976, with dual audio inputs, two CV inputs to control the level and a stereo output. Euro Rack Module: 14HP wide User Manual: AM8010 Quick Start Manual The AMSynths design uses the CA3080 OTA chip at the...

Overview This module is a replica of the Roland Jupiter 6 (1983) voltage controlled filter which comprises two 2-pole State Variable filters in series. Forty years later the AM8060 contains the same two SVF's, with each of the 2-pole filters switchable into either Low Pass or High Pass mode providing...

Description This module is an accurate replication of the Low Pass Filter from the legendary Roland Jupiter 8, inclduing the unique Q compensation. A warm sounding filter with smooth frequency control and a resonance that gradually increases up to full self oscillation, a sound very reminiscent of the...

This module uses the SSI2144 chip to provide a 24dB Low Pass voltage controlled filter. This is a new chip based on the original SSM2044 from 1980. It is a cascade filter designed by Dave Rossum and Ron Dow, and re-issued by Dan Parks at SSI. It emulates the Moog ladder filter but with improved accuracy...

This is recreation of the Moog 991 Fixed Filter module from 1968, an accurate reproduction of the original schematics. A passive design that requires no power. The module contains a pair of fixed filters (single pole -6dB Low Pass and High Pass) and an attenuator. There are five filter positions for...