All of the keyboards are running through a mixer live with effects, looper and recorder attached. Great for idea generation and loop builds. This room has the following listed keyboards. Yamaha SY-22, Yamaha DS-55, Roland D-50, Ensoniq ESQ-1, Korg DW-8000, Akai AX-80 & Oberheim OB-12. Effects modules are Yamaha PSE 40X double unit, Multiple Rackmount Effects plus three other custom stomp box pedal effects boards. PA Sound is 900W through 4-15″ woofer box enclosures with horns. A Marantz Solid State recorder is connected.