The OB-8 featured 8-voice polyphony, a VCF that was switchable between 2-pole and 4-pole, and the Oberheim "parallel buss" system which allowed it to interface with the DMX drum machine and the DSX digital sequencer.
Wally Badarou,
Paul Bliss,
China Crisis,
Dave Clayton,
Dennis DeYoung of Styx - used extensively live in concert,
Depeche Mode,
Electronic Dream Planet,
Paul Fishman,
Chris Franke of Tangerine Dream,
Dead or Alive,
FSOL,
Pascal Gabriel of S'Express,
Brian Gascolgne,
Stephen Hague,
Micheal Hoenig,
Jimmy Jam with The Time and Janet Jackson,
J. J. Jeczalik,
KLF - used on The White Room,
Geddy Lee of Rush,
Steve Levine,
Mick MacNeil of Simple Minds,
Meat Beat Manifesto,
Ministry,
Rene Moore,
Trent Reznor of Nine Inch Nails,
Motiv8,
Will Mowat of Soul ll Soul,
Planet 4 Records,
Philip Pope,
Rapino Brothers,
Steve Roach,
Tangerine Dream,
MArk Stanway,
Sting Trans X,
Eddie Van Halen,
Hector Zazou
[Let us know if you have any further additions to this list.]