The Tyros MS01 speakers are fine for just doodling around at home in a small room. When I want to kick it up a notch, I run my Ty thru my KN7000 and my MS01's (which has the best built-in sound system of ANY keyboard on the market right now). At that point, my neighbor below me will call and tell me to turn the volume down! Like other things, LOCATION and APPLICATION dictate the need. And that's different for each person.