I bought the subwoofer below. It is rated at 150 watts and my AVR is 90 watts/channel. Since the subwoofer has its own power, will it output 150 watts? http://www.newegg.com/Product/Product.aspx?Item=N82E16882780019&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-