Hi Guys, I'm really sorry if this question has been asked before, but I couldn't find any exact information. A friend of mine, has an SVS 16-46 PCi which he keeps bottoming out, because his room is too big. It's 20x20 and the ceilings are 16 feet high, I believe. Anyway, the SVS bottoms out, at -15dB from reference, and it's calibrated properly. What he wants to know, is how much more output does a B4+ have than the 16-46 PCi? Will he finally be able to play his movies AT reference, without having his sub bottom out all the time?