OK, I have a Denon 3801 receiver with an 80Hz X-over. I power the front L/R/C and Sub with 2 B&K Ref 4420 @ 225W/ch. The rears are powered by the receiver. I listen to 2 Channel in Direct mode using my combo CD/SACD player DACS. I watch DVD and Cable movies (DD, DTS) via the digital inputs of the 3801. Both are equally important to me. I just purchased a pr of Paradigm Studio 100v2, with a -3 db point of ~35 Hz, and a soon to be purchased matching center. They replace my ACI Sapphire 25ths and Emerald center. I have an SVS 16-46 sub. According to many, I should still set the speakers to small, and let the sub do the work from 20-80Hz. However, I feel like I am wasting the towers and would rather use a 40-60Hz X-over. So, which option makes the most sense: 1) Set the system to NO sub. Front L/R speakers to Large. Purchase a Paradigm X-30 (or similar, please recommend) X-over and use that to integrate the sub at the line level. 2) Skip buying the center for now and pick up a Sony ES or HK (or something else?) with adjustable x-over internal. 3) Use the extra B&K EX442 I have lying around to power the rears, and buy something like the Outlaw 950 (or other, please recommend) used. 4) Get over using the Studio 100's as 'small' speakers. 5) Other, please recommend. Thanks in advance!