Can someone tell me if this is a good cheap sub
http://www.bestbuy.com/site/olspage.jsp?id=1059573942761&skuId=5788105&type=product&productCategoryId=cat03081
http://www.bestbuy.com/site/olspage.jsp?id=1059573942761&skuId=5788105&type=product&productCategoryId=cat03081