MATRIXSYNTH

Tuesday, March 31, 2026

Roland GR-700 Analog Guitar Synthesizer SN 400310

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


via this eBay listing

Note the second MIDI port on back. No mention if it's MIDI In which the GR-700 lacked or a 2nd MIDI OUT/through.

This previous listing for one also has the extra port. Note the programmer port to the left is not MIDI, but for the PG-200. In this other listing it is referenced as MIDI IN port.

This one is in via MATRIXYSNTH reader Kerry.

Lo-Fi Electronica with Circuit, Tape Loop and OP-1 field | Stone Section 2026-03-31 by atnr


video upload by atnr

"A piece created with Novation Circuit, tape loop, and OP-1 field. It is lo-fi electronica built from simple rhythm and synth.

The tape loop contains a one minute electric piano performance. It is played back with reverb from blueSky.

On the Circuit, rhythm patterns and harmony are looped. Reverb is added with MOOD MKII.

On the OP-1 field, a synth lead is performed. The signal is processed through monotron DELAY with delay and filtering, then through LOSSY with reverb and filtering."

Most Famous Synth Sounds


video upload by Nicolas Melis

"Most Famous Synth Sounds

A collection of some of the most famous synth sounds ever made, recreated using the synths I currently own
From the iconic DX7 electric piano to classic sounds from the D-50, M1, Minimoog and more — these are the tones that shaped countless records.
All sounds were played and recorded live. Some patches include a bit of reverb and delay.

0:00 Yamaha DX7 E.PIANO1
0:15. Roland JUNO60
0:26. Korg M1 Piano
0:43. Roland D50 Pizzagogo
0:54. Moog Minimoog Bass
1:01. Yamaha DX7 Full Tines
1:11. Roland JX8P Stab Brass
1:24. Korg M1 Organ 2
1:33. Roland D50 Staccato Heaven
1:49. Roland D50 Fantasia
2:07. Korg M1 Universe
2:24. Roland D50 OK Chorale
2:35. Roland D50 Shakuhachi
2:47. Yamaha DX7 Harmonica
2:55. Yamaha DX7 TUB BELLS
3:03. Yamaha DX7 Marimba
3:08. Moog Minimoog West Coast Whistle
3:19. Moog Minimoog Lead
3:30. Roland JX8P Sync Lead
3:37. Moog Minimoog Pop Corn
3:46. Yamaha Dx7 Bass 1
3:52. Roland D50 Afterthought
4:02. OB6 Jump brass
4:16. OB6 Sawyer Bass"

KORG MONOLOGUE Review // Fun, Friendly and Affordable Synth


video upload by Woody Piano Shack

"Review of the KORG MONOLOGUE analog monosynth, a great budget synthesizer that I have really enjoyed!"

MORE WOODY PIANO SHACK
https://woodypianoshack.com

Twin Tropiques - Anti Rave Frosty & Slopes Edition Rhythmic Percussive Drone Synthesizers


video uploads by Twin Tropiques



Note the above is a playlist for the the Anti Rave Frosty Edition. The listing below is for the Slopes Edition. Not sure how or if they differ. This appears to be the first post to feature Twin Tropiques.



via this eBay listing

"Fully Analog Patchable Synth with Aligator clips included.....Very unique sound and is perfect for Noise, Odd Glitchy sounds....All all the available patch opportunities, you can get some really sync'd Percussive Rhythms...Nice squishy Textures and lot's of Clocks, Gates, Noise, Logic, Dividers...it really is packed with features...You can also interact with other Eurorack Gear.

Specs below.......

2 VCO's (pulse and triangle outputs

Unique capacitor switching low pass filter capable of a wide range of sounds

- percussive pinging, metallic sounds, additive and comb synthesis, lush and mellow to harsh and abrasive mayhem

-3 XOR gates which can generate logic outputs from pulse inputs or can be used to ring modulate pulse waves

-pseudo random chaos generator inspired by the famous rungler module by Rob Hordijk, has clock and data inputs and chaos output, great as a sound source or for modulations + 4 circuit bending touch sensitive patch points)

-The circuit bent patch points allow a range of WTF type of non linear and unpredictable modulation, depending on how and where you patch them

-2 slope generators with voltage control on attack and release, end of cycle pulse output, and trigger, hold, and loop inputs

-2 waveshapers with 2 voltage control inputs each, for overdriving and mangling internal or external signals

-2 gates

- 1 high pass with diode clipping, 1 low pass

- very clean

Oberheim Xpander SN G50424

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


via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Absolute classic Oberheim Xpander. A 6-voice analog with huge modulation matrix. A versatile and rich sound. U.S. version, in perfect condition, everything works, looks good too. The encoders were replaced a few years ago."

Emu Emulator Analog Voltage Interface SN 62

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


via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Extraordinarily rare E-mu Model 6040 Analog Voltage Interface for the Emulator I. The only other one for sale is over 2500GBP.

This example has been serviced, three switches replaced, and voltages tested, but we have no Emulator I to use for complete testing. You'll need a standard RS232 cable, and the correct OS software - see the Emulator Facebook group. Switchable voltage, IEC mains socket.

Packing 6GBP."

PPG EVU Expansion Voice Unit (Wave 2,3)

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


via this Vemia listing

Click the auction link on top when you get there for additional listings.

"**NO UK VAT** PPG EVU - eight voice expander unit Super Rare! A PPG Wave 2.3 in a box!! Comes with Interface cable. Superb condition and working order. Just supply your own IEC mains lead. VEMIA can collect and pack (18GBP)."

Moog Labyrinth Semi-Modular Analog Synthesizer

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


via this listing

Additional Perfect Circuit listings

Novation Bass Station II Analog Keyboard Synthesizer

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


via this listing

Additional Perfect Circuit listings

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