I’m having some issues with my Subwoofer after having recently changed my receiver from a Sony 30ES to an Onkyo TX-SR702. And I have a few questions in regards to probably replacing it. First off I’m using an Atlantic Technology’s System 4.5 Satellite system. The subwoofer that came with it has been pretty good up until recent problems. Its specs are a 10” cone at 150 watts RMS at a frequency range of 35-180Hz +/- 3dB. An example would be during the first listen to the first track of the new Star Wars soundtrack there is a part with a big booming base drum. Every other boom the subwoofer “clips” (Shuts off for a second) and boy is that noticeable the volume is kind of loud but not excessive. Also during a listen of Tower of Powers Credit it does the same thing. I’ve had to turn down the sub volume to avoid the clipping but now I feel I’m turning up the volume on the rest of the system to compensate for the perceived need for volume. Do you believe the subwoofer is a true candidate of replacement or should I be trying to adjust the settings of the receiver and/or subwoofer? If I had the subwoofer plugged into the sub output before and after is there any possibility that the receiver is over powering the subwoofer even if it is a powered one? If I do replace the subwoofer do you think I have to match it like I would with a center, left, right and surround speaker? Or would any brand of subwoofer be OK? I am pretty insistent that it be a front firing subwoofer. It is a basement install with a concrete slab floor and I don’t like the idea of reflected base shaking the whole house. Which kind of sadly just about rules out SVS. What specs should I really be looking at in a new sub? After reading some reviews I really interested in a couple of Velodyne’s the DLS-4000R or the DLS-5000R. The 4000 specs are 12” cone, 25-120 Hz +/-3 dB, 200 watts continues, 400 watts dynamic power amp. The 5000 specs are 15” cone, 23-120 Hz +/-3 dB, 600 watts continues, 1000 watts dynamic power amp. The price difference is about 200 dollars and am also wondering if the difference between the two worth the extra money? I hoping to buy this and have it for a LOOOONG time even if I upgrade the rest of the speakers in the future. When it lists the frequency response in the specs does it mean it won’t go above or below or is this just the range it was tested at? The reason I ask is because my satellites are speced not to go below 125Hz and the sub says 120Hz, thus will I have a hole between 125Hz and 120Hz? Sorry this is so long and so many questions, but I’ve never had to research a subwoofer before. Many thanks.