Keyboard amps stay clean across the full range that a piano, organ or synth patch covers, which is why they use full-range speakers rather than the voiced drivers you find in a guitar amp. The Behringer Ultratone KT108 is a small combo sized for practice at home, the Ultratone K450FX steps up in power and adds onboard effects, and the Vox VX50KB delivers 50 watts for rehearsals and small rooms.
