KRM Music Systems
KRM Music Systems

Synthesizer Keith

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Modules and MIDI Retrofits

[KRM-100] MIDI-CV-Arpeggiator Module
Full featured MIDI-CV-Arpeggiator Eurorack module. Based on the monosynth retrofit board, but with an LCD display for real-time status and configuration. Update your modular with an arpeggiator, mini sequencer, LFO, portamento, multi-trigger, aux CV source, and more.
[KRM-90] MIDI-CV-Arpeggiator Retrofit Board
MIDI-CV-Arpeggiator retrofit board, with built-in arpeggiator, mini sequencer, programmable LFOs, and many real-time control options. Compatible with 1V/oct, Hz/volt, Buchla, EML, and EMS synths.

Synth Repair see all articles on Synth Repair...

April 30 2025
EMS VCS3 Restoration with DK-1 Keyboard
EMS VCS3 Restoration with DK-1 Keyboard.
June 24 2015
EML-101 Repair and Technical Overview
EML-101 Repair and Technical Overview.
February 10 2015
V-Trig To S-Trig Cable
Building a V-Trig To S-Trig Cable.
January 15 2015
Early Version Of The SCI Model-800 Sequencer
Early version of the SCI Model-800 Sequencer with hi-res DAC.

Music And Demos see all articles on Music And Demos...

August 22 2024
VCS3 Workout
Putting a VCS3 through a studio workout, after a restoration.
December 01 2015
MIDI-CV-Arpeggiator Retrofit - Music Demo
Demo track of my MIDI-CV-Arpeggiator retrofit board.
November 15 2015
Kilpatrick Carbon Sequencer Demo
Demo track of the Kilpatrick Carbon prototype sequencer.
June 24 2015
Sequenced Bass Without A Sequencer on the EML-101
Sequenced Bass Without A Sequencer on the EML-101.