Faders: 24 channel, 1 master
Layers: 2 channel, 1 master, 1 custom
I/O Protocols: REAC, MADI using optional MADI Bridge unit
Mic Channels: 48 mic/line inputs
Mixes: 16 aux buses, LRC outputs
Matrixes/VCAs: 24 DCAs
Onboard Graphic EQ: 12 GEQ
Onboard FX: 6 multi-effect
Control Surface I/O: 8 mic/line inputs, 8 XLR outputs, stereo line in, digital output
Footprint/Weight: 29.5 x 24.2 inches, 44.1 pounds
Stage Boxes: S-4000, S-1608, S-0808
Other Models In Series: M-400, M-380, M-300
http://www.rolandsystemsgroup.com