MATRIXSYNTH

Silveresque - Prophet 600 Synth

YouTube via daveparry
"Sequential Circuits Prophet 600 Circa 1982, featuring it's built-in arpeggiator/recorder. Multi-tracked on a Fostex Mr-8 with reverb added."

4 OSC Micromoog

via David

"This was a fun project. Dan and I took a Minimoog oscillator board and interfaced it to his Micromoog, making a 4-oscillator Micro!"

Rhodes through the TimewARP 2600

YouTube via joomzb
"The TimewARP 2600 from Wayoutware is a great emulation of the ARP 2600 analog synth. It sounds great when used to process external audio - in this case the Fender Rhodes sound from the excellent MrRay73 from GenuineSoundware (oh, and the Fender Twin VST). The TimewARP 2600 is used here to provide filtering, wah, tremelo, ring modulation, audio rate filter modulation, envelope following... It's all controlled from the Novation Nocturn - very easy and intuitive for live use. Sorry, no real music here, just noodling and having fun."

cirklon boot

YouTube via sequentix. New Sequentix Prototype. Sent my way via Robert.
"Cirklon prototype booting-up with gratuitous LED flashing."

And a couple of vids of the original from the sequentix YouTube channel:

Removing a P3 Front Panel

"How to disconnect the cabling connections to remove the front panel from a P3 sequencer."

P3 MemX Installation

"How to install the MemX board in a production P3. Front panel removal is shown in another vid."

once more Juno 6 and Poly 61

YouTube via elfferichfour. follow-up to this post. Comments disabled here to keep them there.
"ok, ok , this will be the last of 3 clips I will make today. Just can't get enough of my old synths !"

Waldorf Largo MP3s

One via Boele of SCD:
http://www.synthmusic.info/mpdries/Philosophersreverb.mp3

One via Stefan Trippler:
http://www.trippler.net/files/largo/102a.mp3

Korg NanoKONTROL and Food

via Dima

Mmm...

Roland US-2 Unit Selector GR-300 GR-700 Guitar synth

via this auction

"Very Rare - Highly sought after - Roland US-2 Unit Selector for GR 100 300 700 Guitar synths and G-series guitars. Use a single G-series guitar to control two synth units at the same time."