About to buy Def Tech speakers and was informed by Def Tech via email that they recommended buying the BP10 over the BP2006 or BP2004 since I already have a dedicated sub (SVS). They said that the 6.5" drivers in the BP10 will be much inproved over the others mentioned which have 4.5" and 5.25" drivers. The BP30 offers 4 6.5" drivers (BP10 only 2). Is the BP30 worth the extra $400/pair for these additional drivers? Asking for help because I cannot even audition these speakers because no one carries the BP series anymore since the power towers have become such a hot seller. They are still available, however. Just added onto my home and working with a budget. Room is 20x20 (I know, not ideal) and will include CLR2000 and BP2x. What do you think?