Ok this is a big time newbie question. I'm considering buying either one of the following: http://www.ecost.com/ecost/shop/deta...=152340#scroll or http://www.ecost.com/ecost/shop/detail.asp?dpno=340606 Leaning towards the sherwood because of price (if it does the same job). Do both of these offer bass and treble controls? As well, the sherwood has an amp, but my speakers have a built in amp, is this going to cause me a problem? Thanks for you time.