Oberheim 4 Voice

Oberheim 4 Voice

Currently sold out. Please use the "add to wishlist" button below so we can notify you when we have another available.

Oberheim 4 Voice FVS-1 for sale. This item was meticulously refurbished by an extremely experienced Oberheim tech over nearly 45 hours and is in much better shape than and should hopefully outlast others you may find. It works flawlessly and is now an absolutely beautiful musical instrument. This is a huge amount of work and is reflected in this units high price. The guy we got it from paid his local repair guy $1000 to service it but it was unclear exactly what he did to it as it still needed a massive overhaul to get it up to our high standards. Typical. 

In addition to any necessary repairs, here's what our tech did to this unit:

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 master out potentiometer for crackle free performance.
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.
Tested systematically, multiple times, with burn in test to ensure stability.

There may be other stuff I left out, but rest assured, everything that needed to be done to make this 4 voice work perfectly was done and the results are incredible. You will not be disappointed.

Here's a quick video of this unit in action:



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!