via this Reverb listing
Wednesday, August 20, 2025
Boss RC-505 Loop Station w/ Original Box
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Roland TR-808 Rhythm Composer SN 25918
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"OG Japanese Roland TR-808, fully converted to US voltage and recently serviced to original Roland factory procedure by Retro Pro Audio, with zero hours usage since service.
As bulletproof an 808 as you will find on Reverb today, with Start/Stop and Tap switches now rated to 50 million key presses.
Full servicing details:
Disassembled, visually inspected interior PCBs and wiring.
Updated PSU: Converted unit from Japanese 100V to US 120V power. Removed existing transformer, replaced with new transformers.
Replaced transformer wiring to PSU PCB.
Replaced PSU capacitors with new.
Replaced original power cord with new 3-prong grounded IEC power cord.
Removed battery holder and cleaned. Replaced batteries.
Removed Start/Stop button and Tap buttons. Replaced both with custom 3D-printed button/adapter PCB and mechanical Cherry MX key-switch assemblies for improved performance—each switch rated to 50 million key presses. No more having Start/Stop or Tap buttons fail on you during live performance or while banging the box in the studio.
Diagnosed poor maraca sound quality to incorrect voltage level at noise generator. Identified root cause of voltage issue to dirty VR trimmer. Removed trimmer, cleaned and replaced. Adjusted trimmer to recommended level.
Removed step switch board. Cleaned module. Four step switches were not triggering smoothly & consistently, Identified a broken step switch actuator, replaced with new.
Replaced 4 poorly performing tact switches with new. Improved tactile feel of step switches by raising height of switch actuators.
Tested step switch ribbon cable as working properly and cleaned the contacts.
Calibrated unit to factory procedure. Cleaned all output & trigger jacks.
This is an 808 ready to go the distance with you in the studio and on tour!"
via this Reverb listing
"OG Japanese Roland TR-808, fully converted to US voltage and recently serviced to original Roland factory procedure by Retro Pro Audio, with zero hours usage since service.As bulletproof an 808 as you will find on Reverb today, with Start/Stop and Tap switches now rated to 50 million key presses.
Full servicing details:
Disassembled, visually inspected interior PCBs and wiring.
Updated PSU: Converted unit from Japanese 100V to US 120V power. Removed existing transformer, replaced with new transformers.
Replaced transformer wiring to PSU PCB.
Replaced PSU capacitors with new.
Replaced original power cord with new 3-prong grounded IEC power cord.
Removed battery holder and cleaned. Replaced batteries.
Removed Start/Stop button and Tap buttons. Replaced both with custom 3D-printed button/adapter PCB and mechanical Cherry MX key-switch assemblies for improved performance—each switch rated to 50 million key presses. No more having Start/Stop or Tap buttons fail on you during live performance or while banging the box in the studio.
Diagnosed poor maraca sound quality to incorrect voltage level at noise generator. Identified root cause of voltage issue to dirty VR trimmer. Removed trimmer, cleaned and replaced. Adjusted trimmer to recommended level.
Removed step switch board. Cleaned module. Four step switches were not triggering smoothly & consistently, Identified a broken step switch actuator, replaced with new.
Replaced 4 poorly performing tact switches with new. Improved tactile feel of step switches by raising height of switch actuators.
Tested step switch ribbon cable as working properly and cleaned the contacts.
Calibrated unit to factory procedure. Cleaned all output & trigger jacks.
This is an 808 ready to go the distance with you in the studio and on tour!"
Supreme Roland JU-06A Synthesizer w/ Original Box
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
via this eBay listing
Korg ARP Odyssey Rev3 37-Slim Key Duophonic Analog Synthesizer
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
"The synthesizer and case are in Mint Condition, and barely used. Includes Power Supply, Case, Manual, Power Supply. Original box does have minor water damage due to stored in attic where rain leaked in.
The Korg ARP Odyssey Rev3 37-Slim Key Duophonic Analog Synthesizer is a professional-grade keyboard synthesizer designed for musicians and producers. With its slim keys and duophonic design, this synthesizer provides a unique and expressive sound experience. As an analog synthesizer, it offers warm and authentic tones that can be further manipulated and crafted to create custom sounds. The Korg brand is well-known for its quality and reliability in the world of musical instruments and gear, making this synthesizer a popular choice for those seeking a versatile and high-performance instrument for their music production needs."
via this eBay listing
"The synthesizer and case are in Mint Condition, and barely used. Includes Power Supply, Case, Manual, Power Supply. Original box does have minor water damage due to stored in attic where rain leaked in.
The Korg ARP Odyssey Rev3 37-Slim Key Duophonic Analog Synthesizer is a professional-grade keyboard synthesizer designed for musicians and producers. With its slim keys and duophonic design, this synthesizer provides a unique and expressive sound experience. As an analog synthesizer, it offers warm and authentic tones that can be further manipulated and crafted to create custom sounds. The Korg brand is well-known for its quality and reliability in the world of musical instruments and gear, making this synthesizer a popular choice for those seeking a versatile and high-performance instrument for their music production needs."
The RSF Blackbox - makes a mono synth poly?
video upload by Soundgas
"The RSF Blackbox - makes a mono synth poly? #Soundgas #electronicmusic #synths #musicproducer"
You can find addtional posts featuring the RSF Blackbox here.
Polyend Press / Sidechain Compression Explained
video upload by Polyend
"Press features complete sidechain functionality with a stereo sidechain I/O, sidechain-activated stompswitch, and high and low pass filters for the sidechain input. These filters prevent any unwanted sounds from triggering your compressor, like hi-hats on a drum track, or the sub frequenies of a boomy kick. Use both filters like a band pass to focus on one narrow frequency band, like the click from a kick, to compress your signal."
Tuesday, August 19, 2025
Luma-mu - Tutorial 06 - A true in-tune polyphonic synth
video upload by DeftAudio
Luma-mu tutorials
"This tutorial is on the latest integration of Luma-mu and Teensy 4.1 MIDI interface to drive Luma-mu clock input directly. This not only gives you the precise tuning of Luma-mu for perfect pitch stability but radically simplifies the integration in modular setup and makes it possible to use as a part of the polyphonic synth setup.
Teensy 4.1 1U MIDI Interface Firmware updates: https://github.com/Deftaudio/Midi-boards
Download Luma-Mu Synth sound ROM here: https://github.com/Deftaudio/Luma/blo..."
Dave Smith Tetra
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
Additional Nightlife Electronics Listings
"This Dave Smith Tetra (Used)has been tested and is in fully functional condition and comes with power adapter."
via this Reverb listing
Additional Nightlife Electronics Listings
"This Dave Smith Tetra (Used)has been tested and is in fully functional condition and comes with power adapter."
Dave Smith Mopho
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
Additional Nightlife Electronics Listings
"This Dave Smith Mopho (Used) has been tested and is in fully functional condition and comes with power adapter."
via this Reverb listing
Additional Nightlife Electronics Listings
"This Dave Smith Mopho (Used) has been tested and is in fully functional condition and comes with power adapter."
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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
