Equipment: - SVS 20-39pc - Outlaw Audio 1050 receiver - Paradigm Titan v2 (mains), CC-170 (center) - Energy Take2 (surrounds) - Sony KV36-FV26 - Toshiba sd-2200 Currently the signal to the sub is set at -12dB. The crossover is set to 80hz. The sub placement is between the TV and the right, front speaker. Test tones measure the sub output at about 4dB's higher than my other speakers (from the listening position). The 150hz to 20hz sweep on the AVIA disk brought to my attention a large spike in output centered around 50hz. I don't want to move the sub back to the room corner (behind the right, front speaker) because the sub's output becomes too much for the rest of my system, and it picks up a slight hum. If I place the sub in the corner, set the signal to -0db and turn the amp down to 50% the output sounds distorted?? at levels the current setting/placement is loud and clear. Do I have to use an external equalizer (BFD or ART equivalent) to reduce the MAJOR spl increase at 50hz? Why does my SVS sound ..distorted (not sure how to describe the actual sound, but it isn't pretty) with a normal input signal and the internal amp set to 50%? Would moving the SVS to a different spot in the room change the spl spike at 50hz (possibly making things worse, maybe better)? The room is 12'x13'x8', opens up into the kitchen and has an open doorway to the rest of the house. Any and all comments are appreciated, thanks!