8meg of sample ROM, 24 note polyphony, 8 way multitimbral, with each patch having four osc, 2 FX processors each with multiple FX - flanger, chorus, reverb, delay, phaser, etc. Three drum kits, four with card. Patches=64x3, perform=16x3. Eight outs - L/R + 3 stereo, responds to JD-800 slider movement JD-990 Dance Expansion Card