I went out and bought a nice Koss headset to use with the Keyboard. WHAT-A-DIFFERENCE!!! All of a sudden I've got this wonderfully clear grand piano sound. For the $750 I paid for the keyboard, it's astounding to me that Yamaha would cheap out on the friggin external sound system. Maybe mine is defective, but I dont think so.

I'd have gladly thrown in another $25 for them to put in a better sound output.

Of course, this is the same company that cheaped out and didn't supply a USB cable with the unit either. You have to go buy that separately.

Otherwise, so far, I'm loving the thing. The keyboard is responsive and easy to play. Many neat features and sounds to work with. All and all, for the price I just don't think you can beat it.