I don't think either of those would suit well, both are bottom-of-the-line. What keyboard are you using? What's the application? The combo amp I use is the Traynor K4... lots of power and sounds decent. I chose it for convenience of having everything in one unit, otherwise I'd've gone with powered speakers and a mixer (JBL eon, QSC k10 or k12, Yorkville NX25p, something along those lines). Motion Sound also makes good keyboard amps.