Hi everyone:

In a few times in several Roland seminars, the Roland people used 2 of the acoustic amps (AC-60+ KCW)as PA and connected the Keyboards, digital recorders, mics, and sounded really great, of course, this was for a few dozen people, a small venue.

I also know that the Italian engineering has good reputation, a perfect example is Montarbo, great sound, reliable, high quality product not available in USA so far, I would buy it if it was sold here.

I am not familiar with the ra400 by Bobbrozman, the best way to find out, is to actually to test it with a keyboard.