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video upload by Cfpp0
"A beat gets added at 3:35 to demo the full sound of the machine, but otherwise this is just the sound of the Hewlett-Packard 241A oscillator (into the Heathkit ID-4101, padded down by a Rucci passive mixer) sent into the modulation circuit on the Maestro Rhythm King MK4. Each available preset is selected so that you can hear how the circuit chops up the external audio in relation. You can also combine two or three presets for more complex rhythms."
via this auction
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Showing posts sorted by relevance for query Cfpp0. Sort by date Show all posts
Showing posts sorted by relevance for query Cfpp0. Sort by date Show all posts
Saturday, November 11, 2023
Wednesday, February 12, 2025
2/2/25 ARP 1613 + Roland System 100 Model 102 + Peavey DDL-3 + Yamaha EM-100 + CXM 1978
video upload by Cfpp0
"We are going to sell this rare and great sounding Roland System 100 Model 102 Expander sometime this year, maybe even this month, so keep an eye on Christopher’s Boutique 489 on Reverb.com in the near future."
2/2/25 ARP 1613 + Roland System 100 Model 102 + Peavey DDL-3 + Yamaha EM-100
video upload by Cfpp0
Saturday, May 11, 2024
5/6/24 Wiard 300 System (at Noisebug, Pomona, CA)
video upload by Cfpp0
Update: new video in horizontal format. Orginal short below.
https://www.noisebug.net/
"This sounds like something Silver Apples might have done, or a delivery truck backing up. The Wiard 300 system is part of the synthesizer collection at Noisebug in Pomona, CA. I found it even more confounding than expected."
video upload by Cfpp0
Friday, September 01, 2023
Monday, March 03, 2025
Saturday, February 03, 2024
Metasonix R-56 Vacuum-Tube Spring Reverb
Note: Auction links are affiliate links for which the site may be compensated.
11/16/23 Metasonix R-56 + Birdkids Unicorn Boom + Gieskes VU Perc + TR-606 + Tapco 4400 + CXM 1978 video upload by Cfpp0
via this auction
"If not for Metasonix, I would never have bought any eurorack. Metasonix is a legendary company, producing legendary products. And, of them, this R-56 is amongst the rarest.
The R-56 has been out of production for years, and will never be re-released. We’ve all asked. The parts are simply not available. So these are rare, and expensive.
It’s a WTF sort of module. A spring reverb you can voltage control. It has a unique sound, even within the Metasonix realm. Customers complained about wanting MORE gain, said the great Tube Pioneer, so this module has it. That insane gain, plus the ability to feedback an electromechanical spring reverb, make it a module that requires finesse (and maybe an attenuator, or matrix mixer). If you are impatient, or unfamiliar with Metasonix‘s quirks, please pass on this listing. It’s odd. Really weird. Also it requires a lot of power for the cold inrush, power on, tube warm up, so you’ll need a nice beefy power supply like an RKP or Trogotronic.
The video in this listing’s photo section features the sound of this exact module.
More likely, you’ve been longing for this, but the blood sport that is Metasonix’s secondary market has kept you from your dark distorted springy dreams. Realize them now. Live them. Buy."
11/16/23 Metasonix R-56 + Birdkids Unicorn Boom + Gieskes VU Perc + TR-606 + Tapco 4400 + CXM 1978 video upload by Cfpp0
via this auction

The R-56 has been out of production for years, and will never be re-released. We’ve all asked. The parts are simply not available. So these are rare, and expensive.
It’s a WTF sort of module. A spring reverb you can voltage control. It has a unique sound, even within the Metasonix realm. Customers complained about wanting MORE gain, said the great Tube Pioneer, so this module has it. That insane gain, plus the ability to feedback an electromechanical spring reverb, make it a module that requires finesse (and maybe an attenuator, or matrix mixer). If you are impatient, or unfamiliar with Metasonix‘s quirks, please pass on this listing. It’s odd. Really weird. Also it requires a lot of power for the cold inrush, power on, tube warm up, so you’ll need a nice beefy power supply like an RKP or Trogotronic.
The video in this listing’s photo section features the sound of this exact module.
More likely, you’ve been longing for this, but the blood sport that is Metasonix’s secondary market has kept you from your dark distorted springy dreams. Realize them now. Live them. Buy."
Saturday, December 02, 2023
12/1/23 Roland (& RYK & E-licktronic) System 100m + Tapco 4400 + CXM 1978
video upload by Cfpp0
"The sequence and drum pattern are lined up differently in this take, with more emphasis on the upbeat. The E-licktronic 118a snare goes to the Roland 150 and gets a ring mod with one of the 112 oscillator outs, then that snare joins the kick in the 121 filter. The 112 oscillators are going to the other half of the 121, to the 172 phase shifter, to the 130 vca, enveloped by the 140. But the 112 oscillators also go to the 172 gate delay (thanks Alex Ball for the tip) for an extra sub oscillator layer, which goes back to the 112, but it’s not much of a feedback loop. CV from the RYK 185 and several LFOs modulate."
Wednesday, July 26, 2023
7/26/23 DEMO: Pam’s triggers Pearl DRX-1 drum machine + Lexicon PCM 70
video upload by Cfpp0
"Pearl DRX-1 for sale at Christopher’s Boutique 489 on Reverb. Has eight presets. You can alter various parameters for each drum sound (pitch, decay, filter, etc). Individual trigger ins and individual audio outs. The audio in this video is from the stereo mix outputs. Tiled room. The rack ears can be removed."
Saturday, November 25, 2023
Tuesday, February 25, 2025
2/24/25 Metasonix S-1000 + Synthetic Sound Labs 1660 + Corsynth VCLFO + MegaOhm CdS VCF/A + CXM 1978
video upload by Cfpp0
"2/24/25 Metasonix S-1000 + Synthetic Sound Labs 1660 + Corsynth VCLFO + MegaOhm CdS VCF/A + CXM 1978
The audio output of the left Synthetic Sound Labs 1660 The Matrix Algorithmic Composer module is patched to the CV input on the Metasonix S-1000 Wretch Machine. The CV output on the right SSL 1660 is patched to the S-1000 pulser. The Corsynth VCLFO is patched to the S-1000 filter CV. The audio output of the right 1660 runs through the MegaOhm CdS VCF/A lopass gate. ALM Pamela’s New Workout clocks the left 1660 and triggers the S-1000 and the left 1660 gate output clocks the right 1660."
Sunday, June 15, 2025
6/14/25 (abhorrent) Roland System 100m + Metasonix R-54 + Zerosum Inertia Horripilation + (…)
video upload by Cfpp0
This is the first post to feature the Zerosum Inertia Horripilation.
"6/14/25 (abhorrent) Roland System 100m + Metasonix R-54 + Zerosum Inertia Horripilation + Peavey 1300 + Alesis MIDIVERB II
Some sludgy Sample & Hold. Pamela’s New Workout clocks the Roland System 100m 150 module’s S&H, which sends its clock out to the 140 envelope and its S&H out to both 110 VCOs, both 110 VCFs. The 140 envelope controls both 110 VCAs. The 150 LFO and the 140 LFO also modulate the VCFs on the two 110 modules. The upper 110 runs through the Zerosum Inertia Horripilation module, which is also modulated by the 150 S&H. The lower 110 runs through the Metasonix R-54, modulated by the 150 S&H signal. The R-54 runs through the Peavey 1300 and is panned center. The Horripilation signal is panned a bit left. Both signals receive some room reverb from the Alesis MIDIVERB II."
Tuesday, August 15, 2023
8/14/23 Technosaurus Cyclodon sequences Microcon + CXM 1978 (umbrella)
Sunday, November 26, 2023
7/10/23 (alternate take) DIY Ray Wilson / MFOS synthesizer + Zerosum Inertia 6AS6 + Metasonix R-57
video upload by Cfpp0
"This video contains more filter sweeps than the video previously posted on 7/10/23, and the MFOS filter cutoff settings cause the Zerosum Inertia 6AS6 Signal Combiner to generate different rhythms than in the previous video. Two MFOS LFOs (at audio rate) go to Zerosum Inertia 6AS6, get combined, go to the MFOS filter, and go one channel on the R-57."
---
ON a separate note, in case you missed it, also see the Music From Outer Space and synthCube Announce Noise Toaster Project Contest.
Monday, June 16, 2025
6/16/25 Roland (RYK, E-licktronic) System 100m + Peavey 1300 + DeltaLab Effectron II + MIDIVERB II
video upload by Cfpp0
"Haven’t been using the E-licktronic 118a 808 bass drum and snare drum clone lately, so this was a chopping-block patch. We’re going to keep the 118a module in the end, as it’s still the closest thing to a Roland TR-808 around here. This System 100m patch is based around two RYK Modular 185 sequencers. The right 185 is clocked by the left 185’s gate output. The 118a snare is being triggered by that same gate pattern and the snare audio output is running through the DeltaLab Effectron II delay, feedback maxed, panned left. Both 110 VCOs are controlled by two RYK 185 sequencers, and both VCOs pass through the right 110 VCF into the right 110 VCA into the Peavey 1300 delay with plenty of feedback, panned center. The 150 and 140 LFOs are on the 110 filters and modulating the 118a accent in and decay CV. Some reverb (preset 23) from the Alesis MIDIVERB II."
Sunday, July 23, 2023
Monday, May 13, 2024
5/11/24 Metasonix KV-100 The Assblaster! processing Yamaha CS-30 + Roland RE-301
video upload by Cfpp0
"Finally, someone sold a Metasonix KV-100 Assblaster! for a reasonable price and I was on time."
Tuesday, August 22, 2023
Saturday, April 05, 2025
4/5/25 (B: ROCK 2/8) Korg KR-55b + Ace Tone VM-80 + Paia 6740
video upload by Cfpp0
"I can’t remember the last time I used this modded Korg KR-55b, so it was high time we moved it from the pull-out rack shelf. That made room for the Simmons SDS8, which is now on that shelf, below the SDS7. We got an “as-is” SDS6 sequencer a few years ago and it has finally been repaired and on its way back, so we’re getting prepared. And now the TAMA TSQ-1000 drum sequencer is up for sale at Christopher’s Boutique 489 on Reverb. Anyways, this KR-55b was modified by SD Machines with decay and pitch controls, external 5v clock input, as well as individual audio outputs. Those six outputs are patched to the six Ace Tone VM-80 inputs, which are overloading hard. The VM-80 mono output runs to the Mackie Onyx 1640 mixer, where the Paia 6740 spring reverb is added on an aux send."
Wednesday, March 05, 2025
3/5/25 Metasonix TM-1 SE + Buchla 292r 281 258d 244s + Doboz TSNM + Peavey DDL-3 + CXM 1978
video upload by Cfpp0
"For better or worse, we got into 4U Buchla format when we purchased the ZIMM system from Zerosum Inertia last year. And that purchase perfectly coincided with us liquidating the massive Tokyo Tape Music Center Buchla TTMC 100 eurorack system and TipTop Audio & Buchla 200 Eurorack system we had amassed over the years. One of the modules I missed was the handy 106 mixer. We had one by TTMC and one by Catalyst Audio. So we just got this Ebolatone CP-3 Moog mixer in Buchla format. This video was supposed to be a test of that mixer, but I got sidetracked."
Monday, February 05, 2024
2/5/24 (atmospheric river range combinations) ElectroComp EML 200 (x2) + Langevin Filter + CXM 1978
video upload by Cfpp0
"Two ElectroComp EML 200 synthesizers are cross-patched, and their master oscillator ranges are adjusted, which affects both samplers, the envelopes, etc. The bottom EML 200 runs through a passive Langevin filter, panned left, high passing. The Chase Bliss & Meris CXM 1978 is set to a delayed reverb, with the reverb increased towards the end. Also used a Synthesizers.com Q124 mult."
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH