I just added a TL3 Blackstone (only thing in the Polk line that would fit) and was wondering at what level to set it in comparison to the other speakers. Runnning a 5.1 Rt20001's FXi300's and an older sub. Just looking to see if other people set all the speakers at a certain level and if so what that is. The answer may be what sounds good to me, so fire away. If it matters I am using aTX NR707 and a Acurus 125x5 on this set up. I have the fronts set at 10.5 center at 7.5 rear R&L at 8.5 and sub at 6.5. Thanks and I hope this isn't too dumb of a question.