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. ” Click here to visit listing 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 visit listing 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 visit listing 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.” Click here to visit listing on eBay

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 visit listing 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. ” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

“Vintage 1985 analog synth with full 6-voice polyphony. All original equipment including keyboard, power supply, manual, cassette tape with factory sounds, and carrying case! Everything works. In great condition – never gigged with this, only used at home. Just replaced the backup lithium battery. You can program everything about the 6 individual voices and layer them or split the keyboard. If you want classic analog synth sounds, then this is considered an innovative synth for its time.” Click here to visit listing on eBay

Lot of 2 Sequential Circuits MultiTrak Project Machines

“These were purchased as part of a joblot last year, and as there is no power cable they are being sold as is with no returns.

No attempt has been made in my possession to get them looked at and because I am stacked with other synths needing attention with my synth tech, space is a premium therefore these have to go.

As expected some wear and tear but overall in good condition. Please see pictures.”
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Sequential Circuits Multi-Trak

“I bought this keyboard back in the late 80’s and stopped using it shortly after college. It’s been sitting underneath a sheet at my parent’s house for the past 25 years – they’re cleaning out the house so it’s time to get rid of my old gear…

The Sequential Circuits MultiTrak is an underrated and somewhat rare analog synth. It has an onboard arpeggiator and sequencer as well as MIDI. The unit is in very good condition with the exception of some scratches on the bottom. This is a great sounding synth and everything works as it should.

The internal lithium battery that maintains the patches was replaced just a couple of weeks ago and I restored the patches I had using the tape interface. I couldn’t find a factory patch WAV online, but you can find MIDI SysEx dumps online and the Owner’s Manual contains settings for the original factory sounds.

Power supply is included, as well as copies of the Owner’s Manual, MIDI Guide, and Technical Manual (purchased from Wine Country Productions back in the day)” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

“I bought this keyboard back in the late 80’s and stopped using it shortly after college. It’s been sitting underneath a sheet at my parent’s house for the past 25 years – they’re cleaning out the house so it’s time to get rid of my old gear…

The Sequential Circuits MultiTrak is an underrated and somewhat rare analog synth. It has an onboard arpeggiator and sequencer as well as MIDI. The unit is in very good condition with the exception of some scratches on the bottom. This is a great sounding synth and everything works as it should.

The internal lithium battery that maintains the patches was replaced just a couple of weeks ago and I restored the patches I had using the tape interface. I couldn’t find a factory patch WAV online, but you can find MIDI SysEx dumps online and the Owner’s Manual contains settings for the original factory sounds.

Power supply is included, as well as copies of the Owner’s Manual, MIDI Guide, and Technical Manual (purchased from Wine Country Productions back in the day)” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

“I bought this keyboard back in the late 80’s and stopped using it shortly after college. It’s been sitting underneath a sheet at my parent’s house for the past 25 years – they’re cleaning out the house so it’s time to get rid of my old gear…

The Sequential Circuits MultiTrak is an underrated and somewhat rare analog synth. It has an onboard arpeggiator and sequencer as well as MIDI. The unit is in very good condition with the exception of some scratches on the bottom. This is a great sounding synth and everything works as it should.

The internal lithium battery that maintains the patches was replaced just a couple of weeks ago and I restored the patches I had using the tape interface. I couldn’t find a factory patch WAV online, but you can find MIDI SysEx dumps online and the Owner’s Manual contains settings for the original factory sounds.

Power supply is included, as well as copies of the Owner’s Manual, MIDI Guide, and Technical Manual (purchased from Wine Country Productions back in the day)” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

mt “This is an American unit running at 110v so uses a step down converter for use within the UK (included).

• The only minor issue I can find is that one of the keys is not as responsive as the others. It does work but needs more pressure than the others – nothing a good clean or professional service couldn’t sort out. Please feel free to come round and fully examine and test out if you are interested.” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

mt “For sale is my Sequential Circuits Multitrak. This is a rare classic vintage synthesizer and in my opinion very underrated, much better than the more readily found Sixtrak. It has a awesome analog sound along with a cool built in arpeggiator & sequencer. Awesome for pads but also gets very beefy in mono-stack mode. This might be the nicest Multitrak you will find. It’s in super MINTY shape, even the bottom is almost perfect. It has custom wood sides and looks and plays perfectly. Includes power supply. Be sure to check out the detailed pictures to make sure you like it. Don’t miss out on this awesome SCI synth! ” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

mt “Selling this synth as is for repair due to pitch bend and chorus problems. Pitch bend works for a strange reason only when controlled from an other keyboard via midi and chorus makes weird noises or have no effect from time to time-although it can be turned off by a chorus on/off button and the synth played without it. Coming with original Sequential E-170 power supply. Again, the synth is still very nice and useful, I would list it as a “used” if not one recent jerk who was attempting to return another “working with limitations” item simply because he did not read the description carefully and changed his mind. So, selling it as is “for parts or not working”, no returns accepted.” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

mt “For sale is my Sequential Circuits Multitrak. This is a rare classic vintage synthesizer and in my opinion very underrated, much better than the more readily found Sixtrak. It has a awesome analog sound along with a cool built in arpeggiator & sequencer. Awesome for pads but also gets very beefy in mono-stack mode. This might be the nicest Multitrak you will find. It’s in super MINTY shape, even the bottom is almost perfect. It has custom wood sides and looks and plays perfectly. Includes power supply. Be sure to check out the detailed pictures to make sure you like it. Don’t miss out on this awesome SCI synth!” Click here to visit listing on eBay

Sequential Circuits Multi-Trak

mt “SEQUENTIAL MULTI-TRAK POLYPHONIC ANALOG SYNTHESIZER WITH VELOCITY SENSITIVE KEYBOARD (AKA “BUDGET PROPHET5″ WITH ONE EXTRA VOICE, FILTER’S MODULATION WITH VOICE OSCILLATOR IS POSSIBLE+POWERFUL ON-BOARD SEQUENCER)

The synth comes with original Sequential E-170 power supply($150 value) and all factory sounds on-board+printed soundlist. Pitch wheel and Chorus functions don’t work well in this unit (pitch bend works only when controlled from other midi keyboard and chorus makes weird noises or have no effect from time to time-it can be turned off by a chorus on/off button). I am not aware of any other problems with this unit, however given its age selling it as is for repair or parts.” Click here to visit listing on eBay

Sequential Circuits Multi-Trak Project Machine

mt “SEQUENTIAL MULTI-TRAK POLYPHONIC ANALOG SYNTHESIZER WITH VELOCITY SENSITIVE KEYBOARD AND ON-BOARD SEQUENCER

The synth works and appears to be perfectly usable, but have few known minor issues:

1) Needs a battery replacement (or any created sounds will disappear after it turned off).
2) Pitch bend probably doesn’t work as I was unable to hear any effect, however it works when controlled by another keyboard via MIDI.
3) Comes without power supply (I tested with my own power supply which is not for sale here).

I was able to program and store few own sounds, but lost them due to issue 1. Selling it as is, for repair.”
Click here to visit listing on eBay

Sequential Circuits Multi-Trak

mt “Sequential Circuits Multi-trak Analog Synthesizer Sequencer

Very cool synth but this one needs some help.

It only makes one sound and it’s just high pitched noise.

I think the OS Eprom needs to be restored.

All of the buttons work and respond to commands.

I changed the battery and receives midi messages.

All of the knobs are missing.

It comes with a new power supply. ” Click here to visit listing on eBay

Sequential Circuits Multi-Trak Project Machine

mt “Sequential Circuits Multi-trak Analog Synthesizer Sequencer

Very cool synth but this one needs some help.

It only makes one sound and it’s just high pitched noise.

I think the OS Eprom needs to be restored.

All of the buttons work and respond to commands.

I changed the battery and receives midi messages.

All of the knobs are missing.

It comes with a new power supply.” Click here to visit listing on eBay