via this auction
"This synth takes its internals and body work from the better known Split-8 synth from Sequential Circuits. This electronic keyboard is an 8 voice polyphonic, bi-timbral analog synth with the ability to split or layer two oscillators.
One of the most notable oddities with the Pro 8 is that you can filter FM one patch with the output of another when stacked in double - this creates some very unusual and unique sounds.
The Pro-8 makes for a very nice programmable polyphonic analog synthesizer with complete MIDI implementation. With 8 voices and 8 oscillators (Curtis 3394 SENTE chips) the Pro-8 is a heavy contender against the Roland Juno-106! However programming the synth, while straightforward and intuitive, is limited to adjusting one parameter at a time assigned to one Data knob. This limits performance ability but is no problem during studio use.
The keyboard features splits and layers, all of which can be saved with patch data. Choose between 8 voice polyphony with 1 oscillator per voice, 4 voice polyphony with dual oscillators per voice, 2 voice polyphony with a mega 4 oscillators per voice, or the unison mode which is just a fat 8-voice solo mode for trance bass and lead heaven! Similar to the Juno-106, the Pro-8 uses a Chorus effect to liven up the sounds. Sonically the Pro-8 sounds much 'thinner' than a Roland Juno-106, however, this 'thin' sound is characteristic of Sequential and is quite nice. The wooden side panels definitely give the Pro-8 that vintage flare!"
