via this listing
Additional Perfect Circuit listings
Wednesday, May 28, 2025
Oberheim Matrix 6R Rackmount Analog Synthesizer SN 682321
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Korg EX-8000 Programmable Polyphonic Synthesizer
Note: Auction links are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Exploring the Roland TR77 / Roland Rhythm 77
Note: Auction links are affiliate links for which the site may be compensated.
video upload by Vintage Audio Institute Italia
"We thought we'd make a video before shipping out this beautiful drum machine.
It's one of our very favourites: it holds lots under the hood, it's a joy to play around with and the variety of rhythms and poly-rhythms frankly seems kind of endless.
The 2 and 4 beat section, which is a matrix of independent patterns, is a a cool and unique add-on that Roland incorporated in a few of its very early drum machines.
The individual drum-sound volume-controls gives you just enough sound sculpting possibilities to not care that the machines is not programmable.
The drum sounds themselves are wonderful, woody and organic awhile at the same time analog and electronic."
SN 458139 via this Reverb listing
"A favorite : Roland Rhythm 77 or TR 77 or the poor man’s CR78 but in our opinion the TR77 sounds better.
It also has individual volume controls for kick, hi-hats, snare and the guiro, an adjustable Fade out function - plus a separate, independent second rhythm section on a dial - as well as the possibility to play multiple rhythms at the same time.
Please check video of another unit we had available.
The Roland 77 has more features, sounds and rhythms than the similar-looking Acetone-branded drum machine.
This unit is in excellent condition, front panel looks almost new - but it has a small peel damage on the side panel visible in one of the photos.
220 V with Italian 3 prong connector - easily changeable to any connector"
video upload by Vintage Audio Institute Italia
"We thought we'd make a video before shipping out this beautiful drum machine.
It's one of our very favourites: it holds lots under the hood, it's a joy to play around with and the variety of rhythms and poly-rhythms frankly seems kind of endless.
The 2 and 4 beat section, which is a matrix of independent patterns, is a a cool and unique add-on that Roland incorporated in a few of its very early drum machines.
The individual drum-sound volume-controls gives you just enough sound sculpting possibilities to not care that the machines is not programmable.
The drum sounds themselves are wonderful, woody and organic awhile at the same time analog and electronic."
SN 458139 via this Reverb listing
"A favorite : Roland Rhythm 77 or TR 77 or the poor man’s CR78 but in our opinion the TR77 sounds better.It also has individual volume controls for kick, hi-hats, snare and the guiro, an adjustable Fade out function - plus a separate, independent second rhythm section on a dial - as well as the possibility to play multiple rhythms at the same time.
Please check video of another unit we had available.
The Roland 77 has more features, sounds and rhythms than the similar-looking Acetone-branded drum machine.
This unit is in excellent condition, front panel looks almost new - but it has a small peel damage on the side panel visible in one of the photos.
220 V with Italian 3 prong connector - easily changeable to any connector"
Maestro Rhythm King MRK-4 SN 45738
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"An American-made, analog drum machine with a distinctively woody tone and a remarkable feature no other drum machine posses - Modulation.
Swipe for a demonstration of how it operates [video previously posted here]
On the back is an audio input for modulating external instruments like guitar, organ or why not a string machine? Much like a side chain compressor, the external signal gets muted by the individual drum hits of the rhythm pattern engaged, almost like a tremolo but rhythmically syncopated.
There’s a slider to control the level of audible drums or instrument input signal.
10 drum sounds and 16 rhythm patterns are available to the user.
No individual volumes are at our disposal but a slider to emphasize the brighter or bass-y drum sounds.
Excellent condition unit with a small bump on the front wood panel.
110 Volt power with standard American power connector."
via this Reverb listing
"An American-made, analog drum machine with a distinctively woody tone and a remarkable feature no other drum machine posses - Modulation.
Swipe for a demonstration of how it operates [video previously posted here]
On the back is an audio input for modulating external instruments like guitar, organ or why not a string machine? Much like a side chain compressor, the external signal gets muted by the individual drum hits of the rhythm pattern engaged, almost like a tremolo but rhythmically syncopated.
There’s a slider to control the level of audible drums or instrument input signal.
10 drum sounds and 16 rhythm patterns are available to the user.
No individual volumes are at our disposal but a slider to emphasize the brighter or bass-y drum sounds.
Excellent condition unit with a small bump on the front wood panel.
110 Volt power with standard American power connector."
Vermona ER9 DDR analog drum machine / ER-9 DRM SN 140456
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"Very cool looking and sounding analog rhythm box with individual volumes for each drum sound for balancing or completely eliminating individual sounds.
Nice and organic and not unlike the Elka Drummer One, especially the maracas sounds like the Drummer One hi-hat, scroll for a video made with the very unit on offer. [video previously posted here]
The Vermona ER9 was serviced and is in excellent condition with minor wear and it was modified with an RCA audio output connector in the back instead of the outdated DIN connector."
via this Reverb listing
"Very cool looking and sounding analog rhythm box with individual volumes for each drum sound for balancing or completely eliminating individual sounds.
Nice and organic and not unlike the Elka Drummer One, especially the maracas sounds like the Drummer One hi-hat, scroll for a video made with the very unit on offer. [video previously posted here]
The Vermona ER9 was serviced and is in excellent condition with minor wear and it was modified with an RCA audio output connector in the back instead of the outdated DIN connector."
80s Synthwave big love 🎹❤️
video upload by RetroSound
"(c)2007-25 by RetroSound
supported by UVI: http://bit.ly/retrosound-uvi
❤️ Support #RetroSound channel: https://retrosound.creator-spring.com
Today another synthwave track from me. You know that my heart beats especially for this genre. The music always puts me in a good mood, no matter if I listen to it or make it myself. It always awakens positive feelings in me.
That's why I'm showing you my track Relaunch today. It was made exclusively with the Roland Juno-106, drums: Linndrum and Simmons.
Have fun!
RetroSound synthesizer demo videos since january 2007.
Everything is free. If you like my work, you can also support me with the purchase of my merchandise stuff or my music.
Shop: https://retrosound.creator-spring.com/
Bandcamp: https://retrosound.bandcamp.com/"
The ultimate memory cartridge for your vintage Roland gear
video upload by Espen Kraft
"The ultimate memory cartridge for your old Roland gear. It's equivalent of 64 Roland M-64C carts. Fully compatible with all the Roland gear that could use these. It's also battery free using F-RAM tech and as such i will hold the stored data for 100 years or more without ever needing a battery.
Check it out here: https://taiwanrider.com/ocart/index.p...
The music is done with only my custom Alpha Juno patch banks and it's all recorded in one take, track by track. All improvised. No editing or MIDI involved. The video shows the tracks as they're being recorded, in real time. Reverb is Valhalla SuperMassive on some of the patches."
AzureECCO🐬
video upload by Isobutane
"Thank you for watching.
All sounds from the RS7000 internal sound bank. Tweaked.
Thank you."
Korg Monologue | Digitakt II | Digitone II - Gravitropism (D&B jam)
video upload by Stefan Torto
"Sculpting Korg Monologue, Digitakt II & Digitone II.
My music : https://stefantorto.bandcamp.com/
Get my sample pack : https://www.stefantorto.com/psy-crafts
Website : https://www.stefantorto.com"
5 Techno Project Files for Digitone II 💾
video upload by Yan Cook
"5 Techno Project Files For Digitone II: https://yancook.gumroad.com/l/sxiyp
I hope these project files will help you learn your Digitone II faster, and boost your sound design skills :)"
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MATRIXSYNTH - EVERYTHING SYNTH
© 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
