Roland a-30 controleur midi
Professional weighted 76-note velocity-sensitive keyboard
MIDI IN, OUT and THRU sockets
Two key zones, split and Layer modes
32 user patch locations; 32 presets for use with GM/GS sound modules
Dedicated buttons for Octave Up/Down keyboard transposition, +2 octaves
Start/Stop button for sequencer control
Bender/Modulation lever for added expression
Battery or AC powered
http://www.synthman.com/roland/Roland_A-30.html
http://en.audiofanzine.com/midi-keyboard-controller/roland/A-30/user_reviews/
325$
Steeve