Okay so I have a strict limit of $285 to spend on a sub. I did my job and narrowed it down like a good boy ;). Now I'm hoping you can help me out and tell me which one to buy:

Polk Audio PSW505 - $272 - (Has 52 reviews on Amazon with an average 5-star rating.
http://www.jr.com/polk-psw505-powered-subwoofer/pe/POK_PSW505/#productTabDetails

Acoustech H-100 Cinema Series 500-Watt - $250
http://www.buy.com/retail/product.asp?sku=90140236&listingid=39515230&dcaid=17902

I hope you guys can help me because I don't know much. :(

P.S. My receiver is a Onkyo HT-R560 that has 130W/ch

Bump

You can't go wrong with the Polk at that price.