Here is my situation. I have a new HK AVR325, a new Athena AS-P400 and various other speakers available for my setup. Among those are Pinnacle Alpines @ 45Hz - 22 kHz (+/- 3 dB), nice fronts but too large. I have some Bose double cubes (I am told these are effective from 200Hz up) and am considering a couple of additional Athena S.5 bookshelves which would be @ 80Hz-20KHz +/-3 dB. My main desire for the Bose is due to the size, mainly for the front left and right. (I do not have a Bose sub) The HK has a Triple Crossover Bass Managment System allowing me to set different crossover settings for each speaker group. So far, so good. BUT, when setting the HK for the sub, the instructions say to set it not lower than the HIGHEST of any of the main speakers. If I used some Bose speakers this would mean setting the sub frequency to 200Hz. However, it is my understanding the Athena sub is only effective to a little over 100Hz. Should I dump the Bose? If I use the Bose will I have a hole between the sub's 100Hz and the Bose 200Hz? Suggestions? Thanks!