Well I finally found what the problem was, seems odd but the threads where the bolts that hold the legs to the cabinet, had air passing by them. I put a low Frq. test tone on and traced it down to the screw holes, you could feel air passing them. I applied teflon tape to the threads problem solved! As for upgrading, maybe go with RF-7's all around As for going with RF-3's all around that is what I had before upgrading to the RF-5's. I like having the larger mains for 2-channel music. The RF-5's seem to have a slight advantage in the mids. As for subs I already have 3 SVS's 2 front 1 rear, over kill huh! "NOPE" Thanks for the help.