Just got my 950/7100 combo yesterday. I set my effect speakers to none because I don't have any yet. Watched Stargate in dts for a little while and the sub was going nuts!! No problem with mine. I did throw in LOTR dts and the first chapter with the mega bass drop, I couldn't feel it but I did have my config for the sub set at -9dbs, which according to my spl was reference. I did move it back to 00dbs and the sub sounded nice and tight!