Doing bass management properly (no doubling-up on signal playback) includes running speakers as small unless you have a true full range speaker (which is almost nonexistent). It's not uncommon for people to be leery of selecting "small" when they have physically large speakers (unfortunate side-effect of the decision made back in the 1990's to use the terms "small" and "large" to designate whether or not bass management was applied), but even a speaker that can play down to 30Hz or 40Hz (like the speakers you mention and the Paradigms I had for many years) are still not truly full range speakers. You will obtain a more even frequency response by letting the subwoofer do the job for which it was designed: playing the lowest octaves.

For your case, I'd definitely suggest experimenting (as you seem to be doing) with various crossover points. With the right sub, using a 60Hz crossover for the mains and 60Hz or even 80Hz for the center and surrounds will probably yield the optimal results.


Time delay will be happening after the crossovers, and the delays are meant to allow all speakers' outputs to reach the sweet spot at the same time. The sub gets a delay just like the other speakers, and that delay comes after the signals get redirected.