You aren't going to get wall-shaking sound under $100 and even if you do, it won't be 5.1 surround sound. If you don't care about surround sound, your best bet would be to save up and get some Z-2300s, they run around $150-$170.
Thanks for the reply. What is the difference between 2.1 and 5.1? I don't even know what those numbers mean. Also it doesn't have to be perfect sound quality. But I'm in college and if my roommates and I are having a party I want the system to bump.
bass takes way more power to produce.im running a set of klipsch bookshelf speakers on a t-amp.that basically means the speaks are getting 10 watts.im using 2 powered subwoofers that barely keep up.so i would say maybe,maybe not.my subs are way beyond that yamaha sub.im running a boston acoustics xb6 200w continuous 600peak.my klipsch subwoofer has about half that output.