MATRIXSYNTH


Sunday, October 26, 2025

Erik Norlander's Roland JX-3P Synthesizer with PG-200 Programmer SN 301533

Note: links to listings are affiliate links for which the site may be compensated.
video upload by moogfoundation



via this Reverb listing

"The Roland JX-3P is a powerful, versatile analog polysynth that blends vintage warmth with early digital control. This unit includes the essential PG-200 programmer (with cable) for full hands-on access to the synth’s architecture, bringing out the instrument’s real potential for sound design.

This example is in excellent condition, includes the original Roland cases specifically designed for the keyboard (hardshell carrying case with Roland logo) and the programmer (original vinyl slipcover with logo), and has been professionally converted to US voltage internally. Everything functions as it should, with a clean panel and smooth operation.

Key Features:

6-voice analog polyphony with 2 DCOs per voice
Classic Roland chorus effect
Oscillator sync, cross-mod, and LFO modulation
Built-in 128-step sequencer
Includes PG-200 programmer for real-time control
MIDI input/output
Condition Notes:

Converted to US voltage
PG-200 and synth are both fully functional
Cosmetic condition is excellent
Original Roland case included
The JX-3P was one of Roland’s first MIDI-equipped analog synths, used by artists like The Future Sound of London, Astral Projection, and Orbital. With the PG-200, it transforms from a preset machine into a true performance synth, with rich modulation, powerful sync tones, and that unmistakable Roland polish.

30% of proceeds benefit the Bob Moog Foundation."

Kurzweil K2500R Rackmount Digital Synthesizer

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


via this auction

Additional Perfect Circuit listings

E-mu ESI-32 Digital Sampler Sound Module SN 099605741

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


via this listing

Additional Perfect Circuit listings

Rare Yamaha A5000 Professional Sampler w/ Sample Collection

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


via this eBay listing

"Comes with 8 cds. The drums is missing and is case only. All others are there with cases"

When Yamaha made a KILLER sampler A5000 A4000 - Analog Upgrade Set


video upload by Don Solaris

"Soundset available at: https://www.donsolaris.com/?page_id=4010"

the Good, the Bad and the WELSON RITMO


video upload by Vintage Audio Institute Italia

00:00 video begins
00:30 introduction and specs
01:48 more examples of auto accompaniment sections
03:07 fast orchestral arpeggios
04:29 more orchestral arpeggios
04:49 waltz ending

"WELSON RITMO - 1980?

The successor to the Welson Band is a colorful device with great analog sounds albeit slightly minimal variety or modulation offerings.

The video probably has the information you need so please watch the whole thing - we can't provide better answers than you find in the video itself.

Let's do a basic rundown here :

The thumbnail shows you the siblings together : The Welson Ritmo and The Welson Band - both machines made by Italian instrument maker Welson.

The Ritmo offers 4 instrument sections with individual volume controls and mute buttons :

SWITCHTRIX ELECTRONICS VCS300/EMS VCS3


video upload by SWITCHTRIX ELECTRONICS

"Using the inverting input amplifiers to create a contrary motion random voltage cv."

"Fierce" INA GRM Tools Atelier


video upload by Stephano Gavilanes

"Second exploration with INA GRM Tools 'Atelier' modular music platform. Sounds were processed and manipulated in Atelier, composition and sequencing done as 8 channels in Logic Pro X.

Original audio samples recorded with miscellaneous objects at home, a couple of synths and an organ.

Hope you enjoy it!🤙🏼

Music composed and recorded by Stephano Gavilanes.© Copyright 2025. All rights reserved."

NO ONE ESCAPES!! / CS-30 * GR-1 * Mantis * Messenger * Prophet X * MonoPoly


video upload by HanzVolt

AN EXCHANGE OF NOIZ 082125


video upload by thenoiztemple

"An Exchange of Noiz (AEON) is a bi-monthly showcase of Experimental, Electronic, Drone, Ambient and just plain Weird Music in Houston, TX.

Curated by SPIKE the Percussionist. [ http://manipulate.net/ ]

The performance space provided by Sound Exchange Record Store. [ http://www.soundexchangehouston.com/ ]

The shows are free and beverages are provided by our sponsor 8th Wonder Brewery. [ https://8thwonder.com/ ]

Performances by:
GULF BANK 0:00
ZEROFIX 16:46
VERTIGO BLUE 41:54
KELLY DOYLE 54:31
ILLICIT RELATIONSHIP 1:06:33
DEMOCRACY OF PABLUM 1:21:34"
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