YouTube via RyanLeslieTV. Sent my way via ortho. Synths start with the Alesis Andromeda at :41. Update: Qwave and Mr. Array in the comments caught that the Access Virus he is playing is actually the Access Virus TI Goldfilter.
"The unit has EPPROM V1 installed, but I am including the EPPROM V4 which improves the midi sync. I always used DIN sync, and it works fine, so I never bothered to install it."
Brume Demo 1 from yvan volochine on Vimeo. "Another noisy synth that I made with MaxMSP (but this one is CPU cheap... around 7% here). Soon available as VSTi here: yvanvolochine.com"
YouTube via ABking01. You can find these on Ebay or you can check with any local Japanese book shop to see if they can order it. Uwajimaya Seattle can order a copy for you for example. ;)
"ELKA SYNTHEX PROTOTYPE. NO ELKA LOGO,NO SERIAL NUMBER. this was the first elka synthex ever made by MARRIO MAGGI for a very famous italian composer maestro GIANNI MAZZA. this synthex is 100% original prototype and was bought from gianni mazza. i had an elka synthex before for 10 years,this one sounds amazing. it has different voice boards and the filters on it are very powerful. on a production models the filters are much thinner. this one does not have computer interface or midi because it was a prototype. i will put more pictures on my site www.synthorama.com if you have any questions please email me." You might remember this one from this post.