MATRIXSYNTH: Saturday, July 15, 2023

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Saturday, July 15, 2023

Studio Electronics P-Five Sequential Circuits Prophet 5 Rack Mount Synth

via this auction

"Studio Electronics P-Five Rack Mounted Sequential Circuits Prophet 5 Rev. 3 with full MIDI."

104degrees by Baghead

"a little experiment that got a bit Arabic? bell tones from 0-Coast, 'Screechy violinish' tones from Spectraphon, drums from MIcrotonic, ambience from Eventide h9, Sequenced by K-Devices TATAT"

MPC Electronics MPC-1 Vintage Analog Drum Machine Demo w MIDI2SDS MIDI Retrofit [mpc1]

video upload by fishjaco

"This is an extraordinarily rare MPC Electronics MPC-1 analog drum machine. It is the only vintage analog drum machine I am aware of that is velocity sensitive. The velocity sensitivity is particularly interesting when applied to the toms as it gradually mixes in "skin resonance" which, to me, sounds like a filtered noise source.

The sequencer only records a couple of the drum tones and is thus not useful. I installed the MIDI2SDS retrofit kit from Elby Designs to make it more usable. Unfortunately there are about 10 sounds on the MPC and only 8 triggers on the kit. In this video the Cymbal and Tom 2 are not triggered.

I chose the MIDI2SDS kit because it transmits velocity data (not demoed in this video). I installed it to receive Midi through the Sync In input so that the retrofit is fully reversible.

The primary purpose of this video is to demonstrate the basic functionality of this unit. It is not to demonstrate my (non-existant) beat making genius, so do not expect a rockin jam.

The audio was recorded directly into an Emu 1616m interface."

Sequential Circuits Prophet 5 Revision 2 | Roland RE-301 | Roland SBF-325 | Expressive E Osmose

video upload by fishjaco

"Here's noodling on fancy gear for 45 min. It's a Prophet 5 rev. 2 through an RE-301 tape delay, SBF-325 stereo flanger/chorus, Louder Than Liftoff Silver Bullet and Audioscape Buss Compressor. The Osmose is MIDI controlling the P5. No Osmose audio here. The 325, when engaged, was only used for subtle stereo imaging so no focus on flanging or chorus in this video.

Just got the Rev. 2 back from Greg M. in Oakland. It has been a privilege to have him work on it as he is (AFAK) the foremost P5 Rev. 2 expert in the world. He did some amazing work, especially on the power supply and MIDI kit install. Thank you Greg, you make the synth world a better place.

Now that I have my hands on this board I can honestly say that, in my opinion, the Prophet 5 Rev. 2 is not overrated. The hype is real. It may not be evident in this video but if you've played synths for a while and sit down to one of these, you will know.

Ok, the gear is admittedly too good for my poor playing skills. Oh well. It just seemed like there should be more Rev. 2 footage out there considering its reputation. Also, the camera turned off and it took me about 5 min to notice so there no video towards the middle. Sorry."


video upload by Mystic Frequencies

"Here is a list of what gear is setup and doing:

SEQUENTIAL PROPHET 10 - All melodies, lead lines and solos.
LINN DRUM - All percussion and Drums.
EFFECTS: Vintage Lexicon PCM80 - Just a little reverb, nothing else.
Audio recorded on a Tascam Model 24 Multitrack Mixer/Recorder.
Video recorded on iPhone 13 Pro Max and a GoPro Hero 8."

7/15/23 Wojciech Kilar’s “Requiem Father Kolbe” poorly programmed on Roland/RYK/Lana System 100m

video upload by Cfpp0

"Long! I should have just linked two of RYK’s 185 sequencers to get 16 consecutive stages, but instead I tried to time things out, using the FXD feature on the 185. It didn’t work for actually reproducing Kilar’s composition, but still sounded interesting enough that I added it here to this archive. CV from two 185s was mixed in a 132 and sent to the 112. Over time I lowered the level of one of the 185s in the 132 and that warped the already mangled sequence further. The drone towards the end is an RYK 175 self oscillating and being lightly modulated by a 140. Each 100m voice goes yo a different Effectron II. Copious amounts of CXM 1978."

Sequential Trigon 6 - Creating sounds, no external FX no talk

video upload by Infested Alien

"Let's spend this evening by playing around with the fun Trigon 6!"

The wonderful Yamaha SY-2

video upload by Paul Curreri

"A few sounds from the Yamaha SY-2 (1975 or so), the upgraded version 2 of Yamaha’s earliest standalone. Such a lovely filter, and remarkably expressive aftertouch to the VCO, VCA or VCF. Start with any of the adjustable presets and meander from there. Pitch bend, portamento, pulse width, two ADSRs, resonant high- and low-pass filters, super-fast vibrato. Plus it's never had a problem in the 6 years I've owned it & has classic CS vibes? Not too shabby."

Patch Notes: Stone Hall (Babel/Triphase/HSO/Inertia)

video upload by New Systems Instruments

"This is mostly a video about Babel, and techniques to use it at audio rate. But IMO when Eurorack modules are done right, they show us universal things about music. Hopefully this generates some useful ideas for whatever modules you have.

For more information on these modules, check out"

Elka OMB 5 | Automatic Italo Disco (2023 segment reupload)

video upload by Espen Kraft

See ELKA OMB 5 Review - Italo Disco from hell! Or heaven? for the longer video.

"Elka OMB 5 - Auto-Erotica Compartment for the Italo Generation.

Support this channel on Patreon:"

Overpriced Pair of 1970s Urei 565T "Little Dipper" Filter Set

via this auction

"This listing is for a pair of gold-trimmed Urei 565T Filter Sets in a black Tolex case (or without). These look incredible. The seller we bought them from wrote:

The 565T offers precise notching and peaking of very narrow frequency bands. The major application is to remove unwanted noises from recordings. Used extensively by the movie industry. It can also be used to create flanging, phasing and other unusual effects.

The 565T has an output transformer that can send a balanced signal to a 600 ohm load. The input level can be switched up 20db and the input impedence can be set between 600 and 10K ohms. This item came out of temperature controled editing suite. The suite had preventative maintenance done quarterly.

Having these will make you feel better in your studio, and feel better about your studio.

You don’t need to worry about the rear connections. You don’t need to make pigtails. You have an in and an out right on the front of the unit, and it takes balanced TRS or unbalanced TS.

What will you use it for? A notch filter, feedback murderer? Lowpass filtration on the 2bus for performative transitions? Nasal peaks? Dub stuff? Purist period-correct cinematic effects? Reductive sonic biopsies, additive implants?


1970s Moog MKG Ten Band Graphic Equalizer

videos uploaded by Cfpp0

Update: quick demos of the unit added.

"I got carried away and forgot to gain stage throughout, but you get the idea. On sale at Christopher’s Boutique 489 ("

via this auction

You can find one featured in this video.

"This is a 1970s Moog MKG 10 band graphic equalizer. Sometimes people disparage graphic equalizers in favor of parametric equalizers. Some people say graphic equalizers are for killing microphone feedback in live rooms, or cutting an unruly resonance in that live room. True, graphic equalizers focus on specific bands, but the shape makes a difference, and Moog knew what they were doing back in 1970s.

We’ve had this for a while and have used it mostly on things like our Roland TR 606 or our Korg MS-20. For the 606, raising the 2k band way up and the 4k up a bit, while dipping the 8k band can make those famous hi hats pop with more presence and less shrill. 63 makes the kick thump. For other things, like synths, I’d just boost the 31 or 63 Hz band to pump it up, warm it up, round it off.

The ears are ingenious. This whole line—the phase shifter, the parametric, this graphic—have reversible ears. Orient them one way and you can rackmount it in any 19” rack. Orient them the other way and you have handles that are cleaner to look at when used desktop-style.

The sliders have an indentation at 0, so you can always feel and find your way back to null.

It sounds great and there is no scratchiness. The only issue is the 1k band, which sometimes glitches at the very top or very bottom of the slider. When we got this it was filthy. I cleaned the grooves within the ears, as there was crud in them. I cleaned grime out of the slider tracts. And dusted the inside. I sprayed the 1k band with deo it, which improved the 1k band’s performance a bit, but if you are buying this to do fancy live wiggling of sliders, maybe get another one—or buy a fixed filter bank. I’d recommend this more for someone who needs it for seeking a sound, accentuating certain frequencies, or doing weird bandpass-ish comb-ish stuff. That said, they’re all perfect except the 1k. The 250 is the stiffest, the rest are smooth."

Pic of the inside.

Shin-Ei “Four-in-the-floor” drum synthesizer foot pedal

video upload by Cfpp0

"Shin-Ei drum machine. Runs on two 9v batteries. Works perfectly, just some occasional scratch on the volume sliders. Distort it and it becomes another thing altogether. Compress it and you can get some 808-ish. Sticker on bottom says from 1974. For sale at Christopher’s Boutique 489 on Reverb."

7/14/23 Shin-Ei “Four-in-the-floor” drum synthesizer foot pedal + Deltalab Effectron II + CXM 1978
7/14/23 DEMO: Shin-Ei “Four-in-the-Floor” drum synthesizer pedal [bone dry]
7/14/23 Pam’s + Synare 3 and a Shin-Ei Four-in-the-Floor into Effectron II (x2) + PCM 70 + CXM 1978
7/14/23 Shin-Ei “Four-in-the-Floor” drum synthesizer pedal and Metasonix TM-5
7/14/23 Chuck Johnson’s “Caldera Wires” poorly programmed into Firstman SQ-01 + Metasonix TM-5

Some pics with the original box via this auction

"This is a vintage Shin-Ei 4 IN THE FLOOR PERCUSSION COMBO foot operated drum machine. Yes, the same Shin-Ei that brought you the Univibe pedal!

Powered by 9v batteries, and operated via four pedals to trigger four drum sounds, with four sliders to control the volume of each drum sound.

The snare rooooolllllllllllllllllls. And you can set the rate of the roll, which they call REPEAT, with a flathead screw driver! Mono 1/4” out.

Great skeuomorphic wood grain laminate with chrome and aluminum. Rainbow on the back, and a cool wedge shape all around. The drum sounds are beefy, robust, healthy, and sound very analog.

I played the pedals by hand, though they are meant to be played by foot, probably while playing guitar, keys, woodwinds, brass, drums, turntables, or possibly the harp if you wanna get all Zeena Parkins and Ikue Mori with it.

Rare as a leprechaun, ride this rainbow into the night."

You can find additional info and pics of another one here.

colossus synthesizer sound design

video upload by Sharon Kavyo


video upload by Woody Piano Shack

"Demo of the KORG TRITON EXTREME SYNTHESIZER, this time as a software instrument from the KORG COLLECTION suite of VST PLUGIN SYNTHS.
Playing the classic piano, bass, keys and wonderful Korg pad sounds!"


ASM Hydrasynth "Best Sounds Bundle" 104 Presets

video upload by LFOstore

"Introducing: 'Best Sounds Bundle' preset pack for one of the most powerful wavetable synthesizers, ASM Hydrasynth.


By Nick Klimenko aka Chronos, a creator of 'Organica' for Waldorf Blofeld & 'WS Universe' for Korg Wavestation devoted to organic & motion sounds ready to go in your action track.

104 presets ready to breathe new colours into your music and inspire creativity
Every patch of our soundset is musical & can be immediately used in your tracks & production.

Inside the pack:

Classic Synths Re-Creations
Warm Analog-Like Tones
Monstrous Basses
Exspressive Solo's
Plucks & Polys
Organic Arps
Big Strings

These sounds are suitable for various styles of music - for cinematics, ambient, electronic dance music, futuristic experiments or creating a retro flavour.

Nick Klimenko prepared for us a stunning soundbank for one of the most authentic synths of our time – HydraSynth Explorer!

Enjoy & may inspiration be with you!"

HUGE New Lo-Fi Sound Bank for Polyend Tracker!

video upload by Electronisounds Audio

Grab the "Lo-Fi Deep Cuts" Sound bank here ►


0:00 Music Example 01
0:46 Intro
1:15 Music Example 02
1:42 Music Example 03
2:44 Music Example 04
3:14 Music Example 05
4:07 Music Example 06
4:37 Music Example 07
5:08 Music Example 08
6:55 Music Example 09
19:26 Music Example 10
20:07 Music Example 11
20:37 Music Example 12
21:05 Music Example 13
21:34 Music Example 14
22:05 Music Example 15

Make Noise Strega, 0-CTRL & ZVEX Fuzz Factory

video upload by

Study Site:
Delay: Shoegazer Reverse Gate (
Distortion: ZVEX Fuzz Factory
Synth: Make Noise Strega

KNAS Ekdahl Polygamist

via this auction

"The Polygamist is a very rare and sought after experimental drone synth, perfect for improvising,and unlike anything you've played before. It features two unique oscillators, a filter with variable pole feedback, three LFOs, a ribbon strip controller and more, it's basically a full modular synth but with semi-modular routing built in. Some highlights include a tilt waveform on VCO 1, morphing smoothly from saw through triangle and out the other side, three subfrequencies available from VCO 2, a unique pitch multiplying oscillator, looping ADSR, and a duophonic midi to CV convertor. This one includes a custom hardwood case and a variety of patch cables to get you started. Touch strip is not only duophonic, but also pressure sensitive, which makes it quite expressive. Includes hardwood case, cables and power supply."

Crumar Spirit (Bob Moog designed)

via this auction

"Super Rare Bob Moog Designed Crumar Spirit Monosynth (the Italian Minimoog). Unique sounds, unique routings, excellent condition (minor marks, nothing major).

The Spirit synthesizer from Crumar was an analog synthesizer designed by Bob Moog, Jill Scott, and, Tom Rhea. It features 2 oscillators with basic sawtooth, triangle and square waves that can be synced together. The filter was highly regarded as well. the filter has low, high, and band-pass modes and is switchable between 12dB and 24dB slopes. Another plus is an independent envelope with key tracking. Other features are an external input, ring Modulator, and an arpeggiator with 3 patterns that could be synced with the LFO section."

Alesis A6 Andromeda

via this auction

1988 Ensoniq SQ80 Cross Wave Synthesizer SN SQ-14843-E

via this auction

Additional SYNTH CITY Listings

Waldorf MiniWorks 4-Pole Filter

via this auction

Additional SYNTH CITY Listings

Waldorf Pulse+ Rackmount Synthesizer SN 710321081

via this auction

"One of the hit synths of 1996, Waldorf's Pulse Plus is a slightly upgraded version of the classic Pulse. Incorporating an external audio input and CV/gate interface."

Additional SYNTH CITY Listings

Quasimidi Revolution 309 SN 43599

via this auction

Yellow Waldorf Q Rack Mount / Desktop Synthesizer

via this auction

Waldorf Micro Q 37-Key VA Synthesizer Keyboard

via this auction


Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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