EDIROL-ROLAND EXPANDER - USB connection or conventional -

has the sound of Sound Canvas following:
SC-55 - SC-88 SC-88Pro addition to the new
+ Sounds of 1100

2 * 32 = 64 polyphony

MIDI IN OUT THROUGH (connected via USB to a PC laptop it also acts as a midi interface)

UTILIZATION

Installed in 10 seconds with USB - brilliant - Ideal for

SOUNDS

commercial MIDI sequences or KAR

sounds are pro - ideal for a laptop with the Piano Bar

OVERALL OPINION

Very good product - for 3700 USD you have a solution for MIDI and
you also connect to any computer or friends - (karaoke)-ons very realistic especially since all the midi sequences are programmed Sound Canvas.
a standard for all musicians twelve o'clock