Oberheim 4 Voice
Oberheim 4 Voice
Please contact us to discuss pricing.
Oberheim 4 Voice FVS-1 for sale. This item was meticulously refurbished with future-proofing measures by a professional vintage synth restoration tech with decades of experience servicing four voices. This process took over 88 hours (!) and the result is a beautiful instrument that is ready to play, that's in much better shape than others you may find, and that should hopefully outlast them too after all the preventative work we did to it. It works exactly as it should. This was a huge investment of time, love and money, and is reflected in this units price.
These left the factory with short maximum portamento times. Our tech swapped out a few components to extend the maximum time. It's still short relative to other synths, but much more usable now.
The photos shown here show the unit we are selling.
No time right now to transcribe 15 hand-written pages of tech notes, but rest assured, we did everything we should have done and more to this example. In addition to any necessary repairs, here's what our tech did to THE LAST 4 voice we prepared. The list of work done to this unit should be nearly identical (if not longer), as this is all standard for our 4 voice restorations:
Disassembled and cleaned inside and out.
Replaced power supply capacitors and trimpots.
Adjusted voltages.
Replaced all trigger LEDs.
Cleaned and lubed all potentiometers.
Cleaned all jacks.
Replaced jack nuts and washers.
Replaced tons of molex connector terminals.
Removed and cleaned all keys, adjusted space and height.
Replaced keyboard bushings.
Cleaned and adjusted j-wires.
Cleaned and lubed switches.
Replaced programmer battery.
Replaced tantalum capacitors.
Recalibrated.
Tested systematically, multiple times, with burn in test to ensure stability.
Here's a video of this unit in action:
And another:
And another:
Here's a quick video of a previously sold unit:
https://www.instagram.com/p/CfJnOCZg8k8/?hl=en
The OB Four Voice contains 4 SEMs and a mixer module. This beautiful instrument can play up to 8oscillators at once, for insanely humongous sounds.
The 4 voice was one of the first polyphonic synths. Each of the four Synthesizer Expander Modules ( SEM ) can be assigned to a different note. Splitting voices between modules is also possible, as is a monophonic unison mode. A single voice is surprisingly powerful, offering 2 oscillators, 2 envelopes (1 for filter, 1 for volume), an LFO, pulse width modulation and a real sweet multimode filter with sweepable mode (which few synths offered). The programmer module allows fast saving and recall of programmed sounds. With a combined 8 oscillators, these sound unbelievably fat. Even a single SEM sounds great. In unison mode, play all VCOs on one key for one of the most powerful vintage synth sounds ever. Nothing sounds like it to us and we've played everything. This is a personal favorite. This FVS-1 has the standard configuration of modules: 4 x Synthesizer Expander Module ( SEM ) Keyboard Output module Polyphonic Keyboard module Programmer module.
If you are an analog synth head who makes musical sounds, you need one of these. To avoid disappointment though, we would recommend anyone looking for a dedicated sound effects machine to go for something else. This 4 voice is fabulous at musical tones and can make some interesting sound effects but there are better choices for clangs, zaps, explosions and similar atonal timbres.
Famous users include: Joe Zawinul, Chick Corea, Styx, Larry Fast (Synergy), Jan Hammer, Herbie Hancock, Human League, Lyle Mays, Michael McDonald / Doobie Brothers, Patrick Moraz, Pink Floyd, Steve Porcaro, The Shamen, Tim Simenon, Depeche Mode, Vince Clarke / Erasure, Tangerine Dream, Stevie Wonder and many other influential musicans who could afford one - this was a very expensive instrument when it came out!
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