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Category: Modular III

AM317 Voltage Controlled Filter

July 26, 2026October 12, 2026 amsynths503Leave a Comment on AM317 Voltage Controlled Filter

The PPG 317 Voltage Controlled Filter dates back to 1976 and the beginnings of PPG when they were a modular synthesizer company based in Hamburg. The The first set of modules was named the 100 series which are visually similar to the Moog modular but with different circuits and panel lettering in German. Some early […]

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Projekt Elektronik – Dual Ring Modulator

July 26, 2026October 12, 2026 amsynths470Leave a Comment on Projekt Elektronik – Dual Ring Modulator

Projekt Elektronik built a one-off custom modular synthesizer for Paul Baumann in 1977. It contains 32x patch busses as well as many customized modules in Moog Modular format. There is a good overview at this web page here. One of the modules that we have decided to clone is the PE 410 Dual Ring Modulator. […]

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AM904C Filter Coupler

June 20, 2025September 19, 2025 amsynths2995Leave a Comment on AM904C Filter Coupler

One of the Moog modules that Klaus Schulze frequently used was the 904C Filter Coupler to create band pass and band reject sounds. You can see it patched into Band Reject mode in live shows from 1975 – 1979. AMSynths have recreated this module in Eurorack, so that you can build a Moog Modular III […]

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AM964 Trigger Controller

March 15, 2025March 15, 2025 amsynths2005Leave a Comment on AM964 Trigger Controller

The Moog Modular  is a fantastic sounding synth but it could benefit from having some performance oriented modules that make live playing more interesting. AMSynths have created three 4HP modules that do exactly that; The AM964 Trigger Controller, the AM965 Manual Switch and the AM967 Fader Recorder. Each module is 4HP wide and has a […]

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AM965 Manual Switch

March 15, 2025March 15, 2025 amsynths1997Leave a Comment on AM965 Manual Switch

The Moog Modular  is a fantastic sounding synth but it could benefit from having some performance oriented modules that make live playing more interesting. AMSynths have created three 4HP modules that do exactly that; The AM964 Trigger Controller, the AM965 Manual Switch and the AM967 Fader Recorder. Each module is 4HP wide and has a […]

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AM905 Reverberation Unit

January 18, 2025January 31, 2025 amsynths2460Leave a Comment on AM905 Reverberation Unit

The original Moog 905 Reverberation Unit design dates back to the late 1960’s and is a simple four transistor circuit that drives a traditional Gibbs (then Accutronics) Spring Reverb Tank actually mounted inside the module! It is a medium delay time (1.75 to 3s). With just one control potentiometer for wet/dry MIX, I am sure […]

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AM991 Fixed Filters

October 24, 2024January 18, 2025 amsynths2372Leave a Comment on AM991 Fixed Filters

The AM991 is a replica of the original Moog module that was included in the Modular II and III systems from the 1960’s. It is a pair of fixed filters (single pole -6dB Low Pass and High Pass) and an attenuator. There are five filter positions for each filter, and the extra attenuator is really […]

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AM997 Dual Trigger Converter

August 3, 2021January 18, 2025 amsynths1738Leave a Comment on AM997 Dual Trigger Converter

This is a 4HP module with two channels of V-Trigger to S-Trigger converters. There are  two S-Trigger front panel outputs and one internal S-Trigger output for each channel. A red LED for each channel, illuminates when a V-Trigger is present at the input. Description The 997 provides a cheaper alternative to the Behringer 961 for […]

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AM984 Quad Mixer

October 28, 2020June 21, 2025 amsynths2206Leave a Comment on AM984 Quad Mixer

This is a replica of the Four Channel Mixer from the Moog IIIP synthesizer in Eurorack. One of the modules missing from the Behringer System 55 range is the large Four Channel Mixer from the Moog Modular IIIp/c. AMSynths have recreated this module, as its an essential part of the sound of the Klaus “Big […]

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AM1631 Dual Ring Modulator

August 25, 2020January 18, 2025 amsynths2114Leave a Comment on AM1631 Dual Ring Modulator

This 8HP module is a Dual Ring Modulator module specifically designed for the Behringer System 55 or any Moog Modules in Eurorack.  The module delivers a superb sound with ringing bell tones across a wide frequency spectrum and works with the lowel signal levels of a Moog Modular replica. Description Moog never made a commercial […]

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