Originally Posted by
bbocaner
It'll work. Depending on what kind of guitar amp you have it may or may not sound OK. Guitar amps are generally designed to provide a colored sound that compliments the sound of the electric guitar. A PA system, keyboard amp, or to a lesser extent a bass amp, is more designed to provide a flat honest amplification.
He's right about guitar amps; they are voiced to achieve certain sound qualities (a Vox sounds different from a Fender which sounds different from a Mesa Boogie). Some computer monitoring systems have a good flat response curve. I've got a stereo amp feeding a pair of 1970s vintage Small Advents (nice sound for the computer). I bought a Logitech computer monitoring system for my wife's computer, and it has surprisingly good sound over the entire frequency range for such an inexpensive system.
The main digital piano companies, mentioned above, all have products sufficient for your purposes at various price points. Avoid the off-brands. I believe Yamaha, Roland, Casio, and Kawai make their own actions; many of the other companies use a Fatar action (Fatar makes different actions for different price points).
Dean L. Surkin
Mack Brass MACK-EU1150S, BB1 mouthpiece
Bach 36B trombone; Bach 6.5AL and Faxx 7C mouthpieces (pBone on loan to granddaughter)
Steinway 1902 Model A, restored by AC Pianocraft in 1988; Kawai MP8, Yamaha KX-76
See my avatar: Jazz (the black cockapoo; RIP) and Delilah (the cavapoo) keep me company while practicing