Akai S2000 Rackmount Sampler SN 99925-01823

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via this listing

Additional Perfect Circuit listings

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NOS Akai S01 MIDI Digital Sampler w/ Original Box & Materials

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via this Reverb listing

Manual, docs, and disks pictured below.

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Roland MC-909 Groovebox

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

via this Reverb listing

Additional SYNTH CITY Listings "Tested in great working condition, showing average wear and tear. Screen has a minor scuff and 3 sliders caps are unoriginal (white). Includes AC power cable, 128MB smart media card, loaded with 16mb SDRAM. Velocity pads have recently been serviced and work great!

The MC-909 is Roland’s answer to the demands of serious producers who want a workstation that seamlessly integrates audio and MIDI. Based on an new generation XV synthesis engine expandable up to 272MB of sampling RAM (16MB standard), the MC-909 has evolved beyond the original concept of a Groovebox. This professional workstation also boasts 800 new Patches, 64 Rhythm Sets and 693 all-new waveforms with SRX expansion. And with professional sequencing, onboard effects, mastering tools and an ultra-intuitive interface—plus a USB port for exchanging samples and sequences with a PC—the MC-909 is all you need to take your music from conception to completion."

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Casio FZ-1 Restored w/ NEW OLED Display & Expanded Memory SN 006792

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via this eBay listing, also on Reverb

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Redshift 6 – MPE Demo

video upload by Supercritical Synthesizers

"Hear the Redshift 6’s MPE capabilities in this demo recorded at Bristronica 2025 — no talking, just pure playing.

00:00 Demo 1
02:40 Demo 2
06:24 Demo 3

The Redshift 6 is a six-voice analog polysynth, but with 16 oscillators per voice, it goes far beyond the capabilities of a traditional six-voice instrument.Each voice can also be played paraphonically, significantly extending the overall polyphony.

External FX used in this demo: Valhalla VintageVerb.

You can find more information about the Redshift 6 synthesizer on our website: https://supercriticalsynthesizers.com"

TronixSynth SpaceAxe Guitar-Like Synth With Touch Sensor Fretboard

video upload by TronixSynth

"Play it like a guitar with touch sensor fretboard and photocell light-Theremin.
Pitch knob, change keys, select scales and octaves."

Yamaha RX5 with RX5USB and custom software

video upload by Collector Current

"A demo of my custom software to put samples on the RX5USB hardware.

There is nothing wrong that I know of with the original software, I just like making my own tools!

Original RX5USB project: https://github.com/gligli/rx5usb

GliGli's demo: • Démo RX5USB partie 1 - L'outil d'édition d... [below]
My custom software: https://github.com/jacobvosmaer/rx5rom
Cool picture of RX5: https://yamahablackboxes.com/collecti...

Blog: https://blog.jacobvosmaer.nl/
Music: https://music.jacobvosmaer.nl/

Démo RX5USB partie 1 - L'outil d'édition des banques de son

video upload by GliGli SFXTeam

"Désolé pour les bafouillages, je n'ai pas trop l'habitude de ce genre de démo ^^
Voir http://forum.anafrog.com/phpBB/viewto... pour plus d'infos."

LoFi Future SUPER VEC 1060 Audio Reactive Analog Video Glitch FX Processor

video upload by LoFiFuture



"Available to order here: https://www.lofifuture.shop/product/s...

The SUPERVEC is a heavily modified / circuit bent video FX processor with audio reactive capabilities.

It is based on the VEC1060 video processor / enhancer. The circuit board of the VEC1060 is completely stripped of any unnecessary components from its audio mixer section and corresponding connectors / faders are removed. Every one of the original potentiometers is fully disassembled, cleaned professionally and reassembled with some high quality silicone lubricant so they operated noise free and feel smooth. Lastly the power input and power regulation circuitry is modified to use a standard 12V switching power supply.

This processor is audio reactive via its built in microphone or via the 1/4" line input. There are 3 selectable decay speeds that result in smooth audio reactivity.

The unit features 12 circuit bent effects that can be combined for a seemingly endless amount of variation. With all of the effects off the unit retains all of its original functionality."

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10/9/25 Pasco Scientific 9301 & 9302 + Yamaha EM-100

video upload by Cfpp0

"10/9/25 Pasco Scientific 9301 & 9302 + Yamaha EM-100

Some lowpass filtration on the Waveform Analyzer. The left 9301 dual function generator goes from DSB to FM to Gate. The spring reverb is the internal tank on the Yamaha EM-100 mixer."

GS Music E7 & Sequential Trigon 6 vs. Memorymoog

video upload by JimDaneker

"An initial look at whether 2 modern synths can hang with the legendary beast: the Moog Memorymoog. More to come on this topic!"

00:00 - Intro
02:07 - "Zeus" patch comparisons
02:47 - Filter sweep comparisons
04:55 - Unison mode comparisons
05:12 - Airwolf outro