Hi Zuki,

Instead of 2 boards you might consider the Ketron MidJay. It only weighs 7 lbs and it has great styles, it holds midi, mp3 and wav files and it records as well. It's a great kick butt little box.

Good luck,

Joe
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PSR S950, PSR S900, Roland RD 700, Yamaha C3 6'Grand, Sennheiser E 935 mic, several recording mics including a Neuman U 87, Bose L1 Compact, Roland VS 2480 24 Track Recorder
Joe Ayala