I'm planning on using a pair of AV123 Rocket RS850 speakers with an SVS PB12-Ultra/2 subwoofer. Since I don't have any of these speakers in my possession yet, though, I can't say with any certainty where I'll dial in the subwoofer crossover until I have them in my home theater room... I just wanted to make sure that the 990 doesn't completely cut off the subwoofer output when the left and right front channels are set to "large". I could have sworn I read that in one of these threads, but like I said they're all starting to blur together, which is why I was asking the question. Thanks...