New Grove Audio 5U GMS-214 Multimode Filter

via Grove Audio

“15 Different Filter Modes and VC Resonance

This multimode filter has two signal inputs mixed at unity gain and allows selection of one of fourteen possible filter configurations from front panel switches. If the resonance control is set high enough, the filter will start to oscillate.

Three CV inputs are provided. A 1V/Octave input controls the filter cutoff frequency in

New Grove Audio Filter Offers 15 Different Modes In One Module

Grove Audio has introduced the GMS-214 Multimode Filter, a 5U module that offers 15 different filter modes, plus voltage-controlled resonance. … Read More New Grove Audio Filter Offers 15 Different Modes In One Module


Published on Jun 5, 2017 John L Rice

“Just messing around with my new portable setup on the weekend.

1 x 921-A VCO Driver
3 x 921-B VCO
2 x 911 ADSR
1 x 902 VCA

STG Soundlabs –

Grove Audio –
GMS-294A Low Pass VCF

Club of the Knobs –
C1631 Bode Modulator
C946 v1

New High Density Modules From Grove Audio

via Grove Audio

“Several new modules combining dual and quad functions in one module will allow 2 complete full function 5U voices in only 8MU of panel space.

The update GMS-742a MIDI to CV Converter offers up to four channels of 16 bit CV outputs and 4 gate outputs. The module can produce up to 4 polyphonic control outputs.

The GMS-302 Dual VCO combines two VCOs with a 4 simultaneous

Moog Sub Phatty Exploration by John L Rice

Published on Aug 13, 2015 matrixsynth

Hi everyone!  Moog Music was gracious enough to send over a Sub Phatty.  I know John L Rice, and love his videos, many of which you have seen here on MATRIXSYNTH.  I asked him if he would be interested in giving the Sub Phatty a go and making an unboxing video.  He obliged and here it is!  Enjoy!  Side note: I have some engagements to attend, so this will

A Nutting They Did Go

Published on Mar 4, 2015 John L Rice

“A bit of a zany tribute to NASA and other space exploration organizations around the world and also to science fiction writers and producers. They both inspire each other and provide the rest of us with some of our most exciting hopes, dreams and fantasies.

Thanks for watching, liking and commenting on my videos!


Main Bass Line: 3 x Synth Tech