[Well, I can't speak for the 933, but I have a 1ghz 640mb 14incher. The sound quality without external speakers is pretty much what you would expect for a laptop. Nothing spectacular about it, but it sounds pretty decent. I can say that I just bought the jbl creature speaker system, and WOW. If you aren't doing any serious listening then the built-in speakers are fine, but I highly suggest investing in a good set of speakers or headphones. With them you wouldn't be able to tell you are listening to a laptop instead of a home stereo.