via this Reverb listing
Additional Three Wave Music Listings
"Arp Quartet in very good condition. Unit is fully functional and professionally serviced in house. Includes sustain footswitch(see photos)"
Friday, August 08, 2025
ARP Quartet Polyphonic Analog Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional Three Wave Music Listings
"Arp Quartet in very good condition. Unit is fully functional and professionally serviced in house. Includes sustain footswitch(see photos)"
via this Reverb listing
Additional Three Wave Music Listings
"Arp Quartet in very good condition. Unit is fully functional and professionally serviced in house. Includes sustain footswitch(see photos)"
Oberheim SEM Pro SN 0780 w/ Original Box Signed by Tom Oberheim & Manual
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Oberheim SEM Pro Analog Synthesizer w/ Original Box - Signed by Tom Oberheim - Rare!
Excellent Near Mint Condition
One very small, faint scratch on the upper right corner of the black, right side panel as shown in photos. Generally not noticeable unless really looking for it at just the right angle.
Sounds Fantastic!! Plugin replicas do not do this synth justice in my opinion.
Includes Original Box, Power Supply, Manual, and a couple of Patch Cables"
via this Reverb listing
"Oberheim SEM Pro Analog Synthesizer w/ Original Box - Signed by Tom Oberheim - Rare!
Excellent Near Mint Condition
One very small, faint scratch on the upper right corner of the black, right side panel as shown in photos. Generally not noticeable unless really looking for it at just the right angle.
Sounds Fantastic!! Plugin replicas do not do this synth justice in my opinion.
Includes Original Box, Power Supply, Manual, and a couple of Patch Cables"
Vintage Analog Roland PB-300 Rhythm Plus & PR-800 Piano Recorder Set
Note: links to listings are affiliate links for which the site may be compensated.
Roland PB-300 preset analog drum machine demo f. arpeggiator to Nord Rack 2 via MIDI
video upload by Barry Warne KJX
"working through the various PB-300 analog drum machine beats, bass lines and arpeggiators that this unit is capable of"
Note this video is from 6 years ago.
via this Reverb listing
"Early 80’s Roland PB-300 Rhythm Plus and PR-800 Piano Recorder Combo Set , both units 117v with MIDI, MIDI out can control other synthesizers via CHORD, ARPEGGIO and BASS settings on the PB-300, the PR-800 is basically an old school Roland sequencer.
Both units working as it should and in great cosmetic condition overall, there’s a tiny crack on the plastic frame on the PB-300 unÃt that can be seen in the last picture, it can be glued and fixed easily."
video upload by Barry Warne KJX
"working through the various PB-300 analog drum machine beats, bass lines and arpeggiators that this unit is capable of"
Note this video is from 6 years ago.
via this Reverb listing
"Early 80’s Roland PB-300 Rhythm Plus and PR-800 Piano Recorder Combo Set , both units 117v with MIDI, MIDI out can control other synthesizers via CHORD, ARPEGGIO and BASS settings on the PB-300, the PR-800 is basically an old school Roland sequencer.
Both units working as it should and in great cosmetic condition overall, there’s a tiny crack on the plastic frame on the PB-300 unÃt that can be seen in the last picture, it can be glued and fixed easily."
Roland TR-808 Rhythm Composer SN 310994
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Single owner and stationary in studio for entire lifetime. The tempo knob is missing, but this can be purchased from spare part suppliers. Installed Kenton retrofit d-sub for MIDI control."
via this Reverb listing
"Single owner and stationary in studio for entire lifetime. The tempo knob is missing, but this can be purchased from spare part suppliers. Installed Kenton retrofit d-sub for MIDI control."
Roland Jupitor-8
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Oberheim OB-SX 4-Voice Synthesizer W/ MIDI & Controller SN 913511XP
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
"Here is a great package for any analog synth lover. It starts with a 1980 Oberheim OB-SX 4 voice that was overhauled by Synthchaser about a year ago... Works like a dream, all voices pass autotune. Has the synth king eprom in it. 56 presets. Comes with Magic Box Midi Editor that connects to the "Computer" Interface on the back. Also comes with a Behringer Controller that has the OBSX template loaded already.. Plug it all up and you now have so many controls to edit the OBSX!!! Synthchaser calibrated th OBSX as well as installed new key bushings. All in all a modern re-do and stable synth to deliver some jaw dropping Obie pads, brass, strings, leads, basses and more! RARE to find a turn key package like this and priced low as well!"
via this eBay listing
"Here is a great package for any analog synth lover. It starts with a 1980 Oberheim OB-SX 4 voice that was overhauled by Synthchaser about a year ago... Works like a dream, all voices pass autotune. Has the synth king eprom in it. 56 presets. Comes with Magic Box Midi Editor that connects to the "Computer" Interface on the back. Also comes with a Behringer Controller that has the OBSX template loaded already.. Plug it all up and you now have so many controls to edit the OBSX!!! Synthchaser calibrated th OBSX as well as installed new key bushings. All in all a modern re-do and stable synth to deliver some jaw dropping Obie pads, brass, strings, leads, basses and more! RARE to find a turn key package like this and priced low as well!"
Bad Gear - 80s are for NERDS!!!
video upload by AudioPilz
"Welcome to Bad Gear, the show about the world’s most-hated audio tools. The 80s are oftentimes associated with Hollywood-worthy heroism, impeccable style and epic synth music that aged great - as long as it was played on instruments designed in the 70s.
Today, however, we are going to talk about K4. This digital synth , Kawai’s answer to Roland’s answer to Yamaha’s DX7 and more upscale successor to the K1 demonstrates impressively that the 80s were - first and foremost - VERY, VERY nerdy.
Chapters:
00:00 Intro tune
00:54 Overview Kawai K4 Synth
01:49 Oscillators, Waves
02:36 Drum Kit
02:47 Synth Architecture, Pitch Envelope, Ring Mod
03:14 Filter Section, Envs, LFOs
03:41 FX Section
03:54 Differences Keyboard vs. Rack Version
04:05 Sound Examples
04:43 Multitimbrality
04:56 Workflow, Pricing, Technical Background
05:25 H*te Screen
05:54 Jam 1 ( Nerd House )
06:47 Jam 2 ( Nerd Elektro )
08:53 Finale ( Nerd Techno )
08:17 Verdict"
WHY OPEN SOURCE IS KING: 3 New Kits for Our 8‑Bit Eurorack Drum Module
video upload by wgd modular
"In this video, we take another look at UTF-8 SAMPLIFIED – the fully open-source 8-bit Eurorack drum module I released with ASCII Synth. It’s made its way into racks all over the world, and even into DIY workshops like the one run by mzourack at Noise Kitchen in Prague.
Now it’s getting even better:
Thanks to a pull request by community member poetaster, three new kits have been added: 808, Jungle, and Beatbox – plus a handy wav2c.py script that lets you convert your own samples into custom kits!
Check out the GitHub Repository:
🔧 https://github.com/wgd-modular/utf-8-...
📚 Wiki and build instructions: https://github.com/wgd-modular/utf-8-...
🔌 Flash your module online: https://wgd-modular.github.io/ut-flas...
📖 Chapters:
0:00 – Intro
0:05 – Our drum module: The story so far
1:44 – PCBWay Advertisement
2:15 – Demo 1: Jungle kit
4:01 – Demo 2: 808 kit
6:20 – Ending words"
FREE OPEN SOURCE DRUM MACHINE DESIGN! DIY BUILD + DEMO
video upload by wgd modular
"In this video we are building a tiny - almost credit card sized - drum machine called UTF-9 SAMPLIFIED. It is based on the bleep drum. Check out my version on GitHub:
https://github.com/wgd-modular/utf-9-...
Original bleep drum design: https://bleeplabs.com/product/the-ble...
My eurorack footprints: https://github.com/wgd-modular/eurocad
00:00 - Hello!
00:06 - Tiny drum machines?
01:15 - PCBWay Sponsorship
01:31 - Building the Drum Machine
02:17 - Jam 1
03:31 - Jam 2 using MIDI"
Rides in the Storm SED CSM
video upload by Sleepy Eye
"Rides in the Storm SED CSM Synth Voice module
Pulse and Tri Osc with Saw Sub"
Mellow Ride (Rides in the Storm - SED CSM Synth voice jam)
video upload by Sleepy Eye
"Rides in the Storm SED CSM analog synth voice
Using the built in glide function
Mostly VCO 2 Tri Wavefolder
A very powerful compact synth"
PREVIOUS PAGE
NEXT PAGE
HOME
© 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
© 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
