Thanks for the reply. The reason I asked was that my wife wants to learn to play piano/keyboard and I want all of the fun sounds for backing tracks(I'm a guitarist). Does the line out on the PSR/YPG work well for outside amplification? i.e. keyboard amps, PA's. I notice both only have one headphone/output plug. I've been warned that headphone outs do not lend themselves to good outside amplification.