I use my home system almost exclusively for movie-watching. I use a Kenwood 1050SW sub that can get a bit rough with some DVDs that pump out heavy bass. It's a 150-watt sub, and I don't play it all that loudly - it's not like I really crank the system and push it. So what causes the clipping and roughness? My receiver's a Sony ES model I got back in 1999 - it's rated at 80 watts/channel. Do I have a receiver problem or a sub problem? I wouldn't mind getting a new one of either - I just want something that pumps out smooth bass without distortion and/or clipping!