Sequential Circuits Multi-Trak

“Function: 10/10, Cosmetic: 9/10

All functions work and the synth sounds fantastic! Has been serviced and had its internal battery replaced with a new battery holder that takes two AA batteries. As well, the factory presets have been restored, and the battery drain mod has been performed (allows the internal batteries to last for years instead of months). As shown in the pictures, will come with a carrying case (modified guitar case), power supply, as well as an Operations Manual and Midiguide. ”
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Sequential Circuits Multi-Trak

“Restored recently from wine country, they are known for specializing in sequential circuits repair. Pictures not of actual unit, it’s still in the box packed by wine country so I didn’t want to take it out only for photos. Let me know if you have any questions. Sequential Circuits Multitrak Vintage Analog Synthesizer. Condition is Seller refurbished.” Click here to search for synths on eBay

Sequential Circuits Multi-Trak

“I bought this damaged synth a while ago in this condition, but I’m unlikely to get around to fixing it up any time soon so selling it on as I need the space. It does not have a power supply and was sold to me as faulty so that is the condition you are buying it in (it requires a 15v AC power supply). There is water damage to the top panel with signs of rust and even some holes, mainly on the left and right edges. I’ve opened it up and the internal parts are pretty clean and tidy though, no sign of water damage there.” Click here to search for synths on eBay

Sequential Circuits Multi-Trak

” Up for sale is this rare, vintage 1980s Sequential Circuits Multi-Trak 6-voice polyphonic analog synthesizer. Synth is in overall good condition. Shows minor signs of wear & use. Has a massive sound & really fun to mess with, especially the chorus section! All the parameters seem to function properly, however the Pitch Bend wheel is not working (feels stuck). The ModWheel is working properly though and feels great. Comes with power supply cord.” Click here to search for synths on eBay

Sequential Circuits Multi-Trak

“Offering up this analog gem. It’s been in the family for decades, but hasn’t seen much use lately.

I have extensive electronics experience, so I serviced it. I cleaned the controls, performed the battery life modification, and installed a new Energizer Lithium battery. Should last 10 years before it needs service again. Other than that it is unmodified and it is a revision “A” board. The patch memory was lost when the battery died, but I programmed a handful of sounds to test out the features. There is a lot of information regarding the original 100 presets online if you are looking to restore the factory samples.

Everything except the “tape drive” functions were tested. All controls, MIDI and audio I/O are 100%.

The power cord insulation is cracked as noted in the pictures. There are scratches on the bottom and a ding or two on the control plate. Otherwise it is excellent!”
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Sequential Circuits Multi-Trak

“The fine item you are considering is a Rare Vintage Sequential Circuits Multi-Trak Synthesizer Model 615 Keyboard No Power Supply. This cool vintage keyboard is being cold “as is” as I do not have a power supply and have no way to test it. My understanding is that these usually have an internal battery which will also need to be changed. The unit came out of long storage, and was quite dusty, but I cleaned it up pretty well, although the pitch bending wheel is still a bit grindy from dust. Cosmetically, the unit makes a nice overall impression, although one corner does show chipping/banging (see photos). Since I have no way to test this rather rare keyboard, I’m selling it “as is” at a low price that reflects that fact. Please see my photos to have a look at this nice item.”
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Sequential Circuits Multi-Trak

“The fine item you are considering is a Rare Vintage Sequential Circuits Multi-Trak Synthesizer Model 615 Keyboard No Power Supply. This cool vintage keyboard is being cold “as is” as I do not have a power supply and have no way to test it. My understanding is that these usually have an internal battery which will also need to be changed. The unit came out of long storage, and was quite dusty, but I cleaned it up pretty well, although the pitch bending wheel is still a bit grindy from dust. Cosmetically, the unit makes a nice overall impression, although one corner does show chipping/banging (see photos). Since I have no way to test this rather rare keyboard, I’m selling it “as is” at a low price that reflects that fact. ” Click here to search for synths on eBay

Sequential Circuits Prophet T8

“Tunes up, and all of the keys work great, including the velocity/aftertouch. Everything else works perfectly but it is old, so it is being sold as is, no returns. You can come test it out yourself.

Physically it is a bit worn looking The wood side panel has a large chip on the corner as you can see in the photos. and the silk screening has rubbed off in some places along with some paint on the back.

Also, two of the original knobs were missing, so I replaced them with similar looking knobs. One of the original knobs is also missing it’s silver cap, so it’s just pure black.

This is the most expressive keyboard ever! The aftertouch is poly-aftertouch, so each key has individual modulation instead of channel aftertouch like most other keyboards where it affects all voices the same at once. Sounds soooooo good! For a vintage synth you’ll only find this kind of feature in the CS-80 or Rhodes Chroma to my knowledge. Works as a great controller for other synths. The aftertouch has the perfect sensitivity. ”
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