i haven't heard those subs you just mentioned, but if you really want to go inexpensive i would strongly consider following curtis' advise and looking at the hsu stf-1. i've heard it, and it's no slouch for such a little sub. av123 also makes a small sub that they sell for $200. i haven't heard it but people seem pretty positive about it as well. maybe i'm just buying into the marketing of the name brands, but for the price and for what you want (small room and music) i bet either of these subs would do well for you.