I am looking at purchasing a US Acoustics amp http://www.crutchfield.com/cgi-bin/S-bNPQNE4yZYc/ProdView.asp?s=0&c=3&g=110&I=235USX205B&o=p&a=1 and i was wondering if it is a good amp to get I am looking to run my 4 full range speakers off of it left and right. Thanks for your help