Gonk, you're exactly right. I purposely set my rear speakers at a higher low pass to get more bass to the subs when playing certain types of music. What I would like is a switch that would just give all the bass to all the speakers and I could adjust what frequencies they would get. The sub woofers would get a full bass signal and I would decide what frequency they would get and I could turn it all off and let the 990 decide. Something like that.