MATRIXSYNTH: Reverb


Showing posts with label Reverb. Show all posts
Showing posts with label Reverb. Show all posts

Tuesday, November 11, 2025

Roland JP-8000 49-Key Synthesizer SN AM36257

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via this Reverb listing

Additional NOISEBUG Listings

Update: video here

Groove Synthesis - 3rd Wave 24-Voice 61-Key Wavetable Synthesizer

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via this Reverb listing

Additional NOISEBUG Listings

Update: video here.

Circuit Bent Texas Instruments Speak & Spell

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via this Reverb listing

Additional NOISEBUG Listings

"Here we have a custom circuit bent Texas Instruments Speak & Spell.

Operates as a totally normal speak and spell until you flip a glitch switch or turn a dial, etc.

Very fun to play, no right or wrong way to it, this bent talking synth is capable of tons of new sounds for you to record, sample or play live.

The added mods include:

1) Tone Oscillator button-creates a tone when depressed, the tone can then be manipulated with the theremin pitch cell, pitch dial or pitch body contacts.

2) Active Matrix Glitch-This mod opens up the membrane for random glitching dependent on where you touch the pad.

3) Ramble Glitch-Flip this switch and hit go and it will spew constant ramblings on and on and on and on.........

4) Dual voice glitch- causes it so speak In both a high and low voice at the same time.

5) Pitch Changing Body Contact-Touch this to lower the pitch, the harder you touch the further the change.

6) Pitch Changing Knob-Use this pitch control to change the pitch from incredibly high falsetto to super low, 8-Bit crushing growl.

7) Reset Button-Use this when you're ready for a change and the machine is rambling on its own, also serves as an OFF button.

8) Theremin Opto Cell Controller-Simply flip the switch, use the pitch dial to fine tune and you can play any sound emitting from the speak like a theremin, makes for some great effects.

9) Loop Switch with Advance Button-FLip this switch at any time to catch a sound that you can then mold and play with the other controls such as the opto cell and pitch dial.

10) Strobing LED for cool effect

It now features a 1/4" output jack that mutes the onboard speaker, allowing you can output this into your effects, amp, pa, etc.

These mods add tons of versatility and droning textures for your playing, recording and experimenting pleasure."

Monday, November 10, 2025

Moog BFAM Brother From Another Mother

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via this Reverb listing

Additional CONTROL Listings

Metasonix TM-7 Scrotum Smasher 2007 - Yellow

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via this Reverb listing

"Metasonix TM-7 Ultra Distortion Scrotum Smasher

This particular TM-7 was modified at the factory to have a TRS connector that provides a stereo signal on the output.

Includes box, manual and power supply.

The TM-7 is basically a mean, angry guitar preamp made of three vacuum tubes. Plus a feedback loop which makes the preamp unstable. The first tube is a 6AK5. It was used as an IF amplifier in military radios and suchlike. We use it as a preamp—a BAD preamp. Then the signal goes through ANOTHER 6AK5. Finally, we have a 6BN6 tube. It was used as an FM modulation detector in cheap FM radios. You’re not supposed to use it for audio. But it has a neat effect….when overdriven, it sounds like a push-pull guitar amp driven deep into saturation. The SMASH switch selects the output desired. Down, and you get the output of the second tube. Up gives the output of the third (6BN6) tube. If you want maximum saturation, flip it UP. The TM-7 outputs are divided down, so they are more compatible with solid-state devices than previous TX series pedals."



EMS Synthi AKS (Vintage) with Original Blue Sequencer

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via this Reverb listing

Sequential TOM 4-Voice Drum Machine

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via this Reverb listing

"This Sequential TOM drum machine is in excellent condition and was recently serviced with a fresh internal 3V battery installed. Included is the original power supply and 'Basic percussion' external sample card. All functions tested and working correctly."

Sunday, November 09, 2025

Erica Synths - SYNTRX II

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via this Reverb listing

Additional NOISEBUG Listings

Yamaha CS-50 Polyphonic Synthesizer SN 2215

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via this Reverb listing

Philips Philicorda GM752 oscillator board *working*

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via this Reverb listing

"Oscillator board from a Philicorda GM752 organ, fully working"

Looks like gingerbread.

Saturday, November 08, 2025

Moog Memorymoog LAMM // Serviced by VS&C

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via this Reverb listing

"MemoryMoog ( owned by Martin Solveig !) LAMM version

Works perfectly !

A new PSU ( silent & less heat) was installed by US"

Sequential Circuits - Prophet T8 // restored by VS&Co

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via this Reverb listing

"Sequential Circuits - Prophet T8

Cosmically, this unit is in excellent condition, a very few age-related scratches on the wood, but overall condition 8.5...9 out of 10

The synthesizer will be fully restored for sale.

A complete list of repairs and an invoice will be provided.

Planned work:

- Replacement of all electrolytic capacitors

- New metal inserts for knobs

- New battery and factory patches loaded

- Replacement of a few defective CEMs

- New trimmers

- Replacement of CMOS, op-amps, and capacitors in the S/H section

- Complete calibration

- Keyboard overhaul: replacement of some faulty optical sensors, new springs, and replaced dampers

- Cosmetic cleaning

Testing and collection in person (Paris 9th arrondissement) is recommended; shipping is possible."

Korg PS-3200 & PS-3010 Keyboard

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via this Reverb listing

"Korg PS-3200 and its PS-3010 keyboard ( very likely one of the first prototypes unit !)

Cosmally, the woodwork shows some agewear but remains in good overall condition. The control panel is in good condition, with some paint/screen printing damage in a few areas.

The synthesizer will be fully restored before sale. A complete list of repairs and an invoice will be provided with the sale.

Work intendend :

- Replacement of all edge connectors

- Replacement of all potentiometers

- Replacement of all jacks

- Replacement of all electrolytic and tantalum capacitors

- Replacement of the CMOS of programmer section

- New batteries

- Complete calibration

- Four filter boards will be replaced with new clones

- Replacement of all divider ICs

- Electronic restoration of the keyboard

- Cosmetic cleaning

The following are available for interested buyers (Contact us for a price and lead time estimate in this case.)

- Installation of a MIDI kit (Kenton)

- Restoration of the wooden cabinets of the PS-3200 and PS-3010 keyboard

- Refurbishment of the screen printing/finishing of the PS-3200 and PS-3010 keyboard"

Friday, November 07, 2025

Octave Cat SRM II / CAT Stick Synth Controller G1210

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via this Reverb listing

"This listing is for the Combo only. A rare never offered combo… at least I haven’t seen it. This is a mint Octave Cat SRM II and Cat Stick in good condition. Th SRM II was in a box. NOS. For 40 years.. the original pressed wood sides were replaced with gorgeous wood end cheeks.. I have the original manual and advertising pamphlets that were included. also I have the original box. The Stick has some scratches in the top right. They were there when I bought it from Main Drag Music."

Elektron Octatrack MkII Dynamic 8-Track Performance Sampler w/ Original Box

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via this Reverb listing

Additional SYNTH CITY Listings

"Elektron Octatrack MKII in gray, working flawlessly and inludes original box, quickstart guide, CF card and power supply."

1983 Roland SH-101 32-Key Monophonic Synthesizer Red w/ Mod Grip SN 351581

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via this Reverb listing

Additional SYNTH CITY Listings

"1983 Roland SH-101 in red with the macthing mod-grip.

The SH-101 is a classic monosynth especially great for fat punchy bass lines. There is a built in arpeggiator and sequencer that work great with the snappy envelope and filter. Fully serviced and calibrated in house, ready for immediate use."

Alesis HR-16 High Sample Rate 16-Bit Drum Machine (w/ Diabolical Devices Mod) & Original Box

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via this Reverb listing

Additional SYNTH CITY Listings

"Unleash sonic chaos with this legendary Alesis HR-16, twisted and transformed by none other than Diabolical Devices. This isn’t your average drum machine — it’s a fully warped playground of glitchy textures, distorted rhythms, and unpredictable audio mayhem.

Modded with predetermined bends that can be patched by the user, this beast lets you sculpt everything from crunchy lo-fi beats to alien soundscapes.

Includes original box, power supply and 2 patch cables."

Quasimidi Rave-O-Lution 309 w/ drum & synth exp

Note: links to listings are affiliate links for which the site may be compensated.


via this Reverb listing

Thursday, November 06, 2025

Vermona Digital Rhythm Machine / programmable analog drum machine

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video upload by ohm_studi_ohm



via this Reverb listing, also on eBay

"Programmable analog drum machine from East Germany, often tagged as the "east block TR-808". I think it deserves better than this comparision, since it's a very nice sounding drum machine on its own, with many features for the time (MIDI IN and OUT - sync and trigger, stereo output, optional trigger inputs and individual outputs etc)

Unit was serviced, calibrated and is in fully working order. It has the latest firmware which fix the MIDI timing issue earlier units had. If you don't know these units check the quick demo I made with this very unit. (led blinking is of course only due to video refresh rate, they don't blink in real) I serviced several of those units through the years. Cosmetic is in excellent condition with only very little wear and scuff."

PPG Wave 2.3 v8

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via this Reverb listing

"An absolute legend. Super rare PPG Wave 2.3 with v8 software. This PPG has been completely serviced, bushings replaced, all caps replaced, old lcd replaced with a Noritake VFD (no more output whine), and the OS upgraded to v8. I have a copy of the PPG manual as well and it is available online.

The v8 software fixes the bugs of the original, allows for sysex dumps, and even allows dumping wave files to the PPG from the Wavesim plugin. Due to age and fragility, unit is local pickup only and as is. Being local pickup, you of course will be able to go through it and verify all is functioning."

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

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