Note: links to listings are affiliate links for which the site may be compensated.
via this listing
You can find demos of the Polygamist in previous posts here.
"Super-rare, discontinued, legendary, semi-modular experimental noise synth
Knas made about 70 of these, then production was stopped. They are now super-rare, almost impossible to find. Great synth for live/improv sonic madness.
Overall condition is Excellent, only downgraded to Very Good because a couple of the plastic switch caps are missing. This does not affect function, everything is working as it should.
2 unique oscillators (Tilt & Multiply), 3 LFOs, Multi-pole Filter, plenty of patch points, ribbon controller, CV/Gate and MIDI control, easy interface with eurorack gear."
Tuesday, March 11, 2025
E-mu Orbit 9090 Rackmount 32-Voice Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Beetlecrab Audio Vector Digital Hardware Desktop Synthesizer SN 070029
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
"Vector, an experimental exploratory hardware synthesizer combining elements of several synthesis methods into a very special expressive blend. With a touchscreen interface, smooth rotary encoders and firm toggles for navigating the partials — how they evolve, modulate, mix and cut.
Features:
Innovative hybrid synthesis engine
Complex modulators
16 voice polyphony with 4 filters per voice
Extensive arpeggiator with a step sequencer
4 carefully tuned rich effects
7" capacitive touchscreen
25 smooth infinite rotary encoders
7 toggle switches
Metal body 29×18×5 cm (total height 7.5 cm)
1.5 kg weight, built like a tank
Stereo 6.35 mm output (2× mono jack)
Stereo 6.35 mm headphone output
Ethernet port
USB device, USB host
MIDI TRS input and output ports
Runs on ARM® Cortex™-A53
Powered by real-time Linux
32-bit internal processing
32-bit DAC (106 dB SNR)
Firmware upgrade via LAN or USB drive"
via this listing
"Vector, an experimental exploratory hardware synthesizer combining elements of several synthesis methods into a very special expressive blend. With a touchscreen interface, smooth rotary encoders and firm toggles for navigating the partials — how they evolve, modulate, mix and cut.Features:
Innovative hybrid synthesis engine
Complex modulators
16 voice polyphony with 4 filters per voice
Extensive arpeggiator with a step sequencer
4 carefully tuned rich effects
7" capacitive touchscreen
25 smooth infinite rotary encoders
7 toggle switches
Metal body 29×18×5 cm (total height 7.5 cm)
1.5 kg weight, built like a tank
Stereo 6.35 mm output (2× mono jack)
Stereo 6.35 mm headphone output
Ethernet port
USB device, USB host
MIDI TRS input and output ports
Runs on ARM® Cortex™-A53
Powered by real-time Linux
32-bit internal processing
32-bit DAC (106 dB SNR)
Firmware upgrade via LAN or USB drive"
Siel Orchestra 2 SN 238/173
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
"The SIEL Orchestra 2 is a vintage analog polyphonic synthesizer produced by the Italian company SIEL between 1983 and 1986. An improved version of the original Orchestra, this model offers greater flexibility and sound control, making it a highly sought-after piece for musicians and collectors.
Main Features:
Sound Sections: The synth is divided into four main sections:
Brass: Includes trumpet and trombone sounds with independent attack and sustain controls.
Strings: Features cello and violin sounds with independent attack and sustain controls.
Reed: Adds accordion and musette sounds, expanding the timbral possibilities over the previous model.
Piano: Provides traditional piano, honky-tonk, and harpsichord sounds.
Polyphony: Full 49-note polyphony, allowing for complex chords without limitations.
Additional Controls: The Orchestra 2 introduces several improvements over its predecessor:
An enhanced filter for the brass section with cutoff and resonance controls.
A 5-band graphic equalizer for fine-tuning the sound.
A simple LFO to add modulation effects.
Octave transpose function.
An 'Animator' effect, acting as a flanger to enrich the overall sound."
via this listing
"The SIEL Orchestra 2 is a vintage analog polyphonic synthesizer produced by the Italian company SIEL between 1983 and 1986. An improved version of the original Orchestra, this model offers greater flexibility and sound control, making it a highly sought-after piece for musicians and collectors.Main Features:
Sound Sections: The synth is divided into four main sections:
Brass: Includes trumpet and trombone sounds with independent attack and sustain controls.
Strings: Features cello and violin sounds with independent attack and sustain controls.
Reed: Adds accordion and musette sounds, expanding the timbral possibilities over the previous model.
Piano: Provides traditional piano, honky-tonk, and harpsichord sounds.
Polyphony: Full 49-note polyphony, allowing for complex chords without limitations.
Additional Controls: The Orchestra 2 introduces several improvements over its predecessor:
An enhanced filter for the brass section with cutoff and resonance controls.
A 5-band graphic equalizer for fine-tuning the sound.
A simple LFO to add modulation effects.
Octave transpose function.
An 'Animator' effect, acting as a flanger to enrich the overall sound."
Dave Smith Instruments Tempest w/ Custom Wood Side Panels
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via this listing
"This particular unit has the updated prophet style knobs and custom very cool carved wood sides so it's a little extra special."
via this listing
"This particular unit has the updated prophet style knobs and custom very cool carved wood sides so it's a little extra special."
Roland System 100 M Modular Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
SNs
112 243152
121 182459
130 323229
140 273958
150 212678
via this listing
SNs
112 243152
121 182459
130 323229
140 273958
150 212678
Roland CR-78 CompuRhythm Analog Drum Machine w/MIDI Expansion Installed
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
"This listing is for one Roland CR-78 analog drum machine. It has been fully recapped and has the fantastic Tauntek MIDI mod that allows you to sync this unit to MIDI clock. It is in great shape and works well."
via this listing
"This listing is for one Roland CR-78 analog drum machine. It has been fully recapped and has the fantastic Tauntek MIDI mod that allows you to sync this unit to MIDI clock. It is in great shape and works well."
Linn 9000 Integrated Digital Drums / Midi Keyboard Recorder (Forat Mod)
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
"The infamous Linn 9000 drum machine in excellent condition! Serviced and upgraded by Bruce at Forat Electronics in 2018."
via this listing
"The infamous Linn 9000 drum machine in excellent condition! Serviced and upgraded by Bruce at Forat Electronics in 2018."
Draft #4 ( AMBIENT DRONE ) Digitakt 2 + Reface CS + Ditto X4
video upload by uh!
"In this draft, I have the Reface CS being looped by the Ditto x4, and with this, I also add effects to create variations. Then the signal goes to the Digitakt, where I'm just playing a small pattern of kick, snare, and hi-hat.
Everything is then separated by tracks in FL Studio."
50 Sci-Fi/Horror presets for ASM Hydrasynth 🎛️
video upload by Yan Cook
"50 Sci-Fi/Horror presets for Hydrasynth [+samples]
https://yancook.gumroad.com/l/hydrasynth
Had a lot of fun designing these sounds, Hydrasynth is a joy to use, and no other synth in my studio is capable of such complex sounds.
I hope you'll find these patches interesting and useful!"
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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































