I strictly use the PSR-2000's onboard speakers for a monitor, however, when I had a PSR-5700, it had a built-in 50-watt amp and two great speakers, more than enough for playing background music for small cocktail parties. Those folks didn't want anything loud and did not want vocals, so it was perfect for this type of venue. Anything larger, and especially with vocals, I'll always use an external amp. BTW: Uncle Dave may not always be right, but he's never wrong!

Cheers,

Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)