360 System Spectre Oberheim SEM Synthesizer

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"This is an Oberheim SEM on the inside, originally marketed by 360 systems for the guitar market. This one was MODIFIED for CV Gate control (it’s not set up for use with guitar).

This unit was meticulously serviced over 10 hours to work like new again, no typical lies or excuses, making this unit better and more valuable than others you may find. Power supply recapped. Molex connector terminals replaced. VCO VCF VCA recalibrated. All pots and switches properly cleaned and lubed. Modified (see below). Audio input added. Cleaned inside and out.

Note: The latches that hold the lid in place are broken and we didn't have a source for replacements.

This 360 Systems Guitar Synth came to us without a guitar pickup (they're usually broken, when they're present), so we had our tech modify it for use with CV and gate from any compatible CV gate devices (including most if not all available midi to CV converters). He also modified it so there's full control over the VCA envelope generator, adding 2 potentiometers for the 2 envelope control that are missing from the stock Spectre in the place of 2 1/4" jacks that aren't needed when using it without a guitar. Since this unit's not set up for use with a guitar, the left side controls have no effect (string related stuff, octave select and transpose settings). We also need to make it clear that since we couldn't test the guitar related stuff, we have no idea whether the guitar section would work if you had a pickup, so are selling this unit strictly as is. If you plan on trying to use it with a guitar and pickup, please realize this. All other controls for the synth section are working perfectly and play beautifully via the CV and gate jacks."

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360 SYSTEMS SPECTRE Rare Oberheim SEM Guitar Synthesizer

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360 Systems Spectre Guitar Synthesizer

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"This listing is for a vintage 360 Systems Spectre Guitar Synthesizer. This comes out of the personal gear collection of bassist Kenny Gradney of the band Little Feat."

With the guts of an Oberheim SEM.

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360 SYSTEMS SPECTRE Oberheim SEM Based Guitar Synth

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"We fully serviced this unit a few years ago and used it occasionally since then. The 360 Systems Spectre is an Oberheim SEM (synthesizer expander module) with a built in guitar interface. The SEM is legendary for its excellent tone, thanks in great part to its sweet multimode filter. We got this unit without a guitar pickup, so it hasn’t been tested with a guitar. We had our tech rewire the transpose A and B jacks so they’re now CV and gate inputs so this unit can be controlled with a Roland or similar type 1 volt per octave synth with CV and gate outputs. Since we don’t have a pickup to test this unit with, we don’t know if the guitar interface section is working, so although we have no reason to believe it’s not working, we cannot guarantee it and are therefore selling it as is. 1 of the latches that holds the case closed is missing but the case still closes ok. There's a new fuse-holder too."

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360 SYSTEMS SPECTRE Guitar Synthesizer

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Oberheim SEM repackaged as a guitar synth.

360 SYSTEMS SPECTRE / OBERHEIM SEM GUITAR SYNTHESIZER

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70's 360 SYSTEMS SPECTRE GUITAR SYNTHESIZER / OBERHEIM SEM

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Some pics of the inside.

"The Spectre guitar synth features the Oberheim 1180 “A” board which is the same board found in Oberheim’s SEM synth module. This synth also features two analog oscillators, a single ADR filter, and an LFO. Producing incredibly rich fuzz, string sounds, octaves, envelope filtering, polyphony, phaser/flanger effects, etc., this unit makes the magic of Oberheim’s SEM, also found within the TVS-1 2-voice"

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OBERHEIM SEM 1978 360 Systems Spectre

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Pics of the inside below. You can see Oberheim printed on the circuit board in one.

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360 Systems Spectre Guitar Synth with Pickup

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"Responds to 1 volt per octave CV and gate, and ARP synthesizer."

Equivalent to an Oberheim SEM.

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360 Systems Spectre Guitar Synth with ARP Hex Pickup

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"Vintage 70s Analog Guitar Synth, Features Oberheim 1180 Board used in OB Sem.. 2 Analog Oscillators, ADR Filter, LFO, 5 Octave Range, Hex Fuzz, Envelope.. Knobs to Tweak For Days, Comes with ARP Hex Pickup, I have 2 Pickups if interested, Recently Serviced and Working as Should..It's in Very Good Condition considering its age, A must for Analog Synth Collector, Studio, Guitarist or Keys Player.. The Bass Note it Puts Out are Killer.. CLASSIC"

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360 Systems Spectre Guitar Synth

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Essentially an Oberheim SEM rebranded as the 360 Systems Spectre guitar synth.

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1979 Original Print Ad: 360 Systems SPECTRE Guitar Synthesizer

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The SPECTRE is essentially an Oberheim SEM guitar synth.

360 SYSTEMS SPECTRE

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"For your consideration is this vintage 1979 360 Systems Spectre guitar synthesizer. This particular example is in very excellent original condition and was recently serviced to be completely studio ready. The Spectre guitar synth features the Oberheim 1180 "A" board which is the same board found in Oberheim's SEM synth module. This synth also features two analog oscillators, a single ADR filter, and an LFO. Producing incredibly rich fuzz, string sounds, octaves, envelope filtering, polyphony, phaser/flanger effects, etc., this unit makes the magic of Oberheim's SEM, also found within the TVS-1 2-voice, accessible to guitarists, other electrified stringed instruments, or even addition synths. A must have for the analog synth collector, inventive guitar players, and studios with an emphasis on vintage analog equipment, this is a really incredible piece."

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360 Systems Spectre Guitar Synthesizer

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Based on the Oberheim SEM.

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360 Systems Spectre Guitar Synthesizer

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Pics of the inside below.

"Here we have a gutted Spectre Guitar Synth. The Oberheim SEM boards have been removed, just leaving the Power supply and the guitar converter board. This board is basically a pitch (guitar strings) to CV converter if you can get it working. Includes only what you see here and sold strictly as-is for parts or repair project. Thanks!"

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360 Systems Spectre Vintage Analog Oberheim Guitar Synth

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OBERHEIM SEM in 360 Systems Spectre vintage analog synthesizer

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"The Spectre is a self contained guitar synthesizer with circuitry that allows a guitar to control the Oberheim SEM inside. The guitar pickup for this one has long since disappeared, so I had the SEM patched out to use it as a desktop monosynth.

The patch points are: AUDIO OUT, AUDIO IN (through filter), LFO RESET (trig in), OSC CV IN, GATE IN, OSC 2 OUT, OSC1 CV IN, OSC2 CV IN, VCF CV IN. The patch points give you semi-modular control over the vintage SEM. It sounds fantastic. It is much rawer sounding than the new SEM."

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1978 & 1979 360 SYSTEMS SPECTRE GUITAR SYNTHESIZER PRINT AD

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"Ad measures approx. 8"X 10.5" inches."

1979 360 SYSTEMS SPECTRE GUITAR SYNTHESIZER PRINT AD

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"Ad measures approx. 8"X 10.5" inches."

See the seller's other items for more.

1978 360 SYSTEMS SPECTRE GUITAR SYNTHESIZER PRINT AD

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"Ad measures approx. 8"X 10.5" inches."

See the seller's other items for more.