Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a good home computer system

This is a pretty good 2.1 system for the price. The sub-woofer is a perfect size to sit right next to my desk. I didn't think I'd really use the MP3 player dock, but it turns out to be a nice feature. The one thing is that when you put your headphones in, you cannot adjust the volume; it's just one setting unless you change the master volume on your computer itself. The quality is good when it's loud, and can get loud enough for my taste. However, listening quietly, you sometimes lose the middle tones.