Hi all, Is there a receiver that could allow me to hook up my Klipsch Promedia Ultras (3 x 3.5mm jacks) to use with my Plasma TV? I would hate to get rid of these speakers. They are 500 watts and the sub is great. I am currently using a Creative DDTS but there is an annoying hum that I can't figure out how to get rid of. Is it because I live in an old house and have ungrounded outlets? The Samsung is TOSLINK out to the DDTS. Thanks for any advice.