Bill, although the M80s have substantial bass of their own, as shown by the anechoic response curve Will(DJ)linked, I'd suggest that you still use the THX recommended 80Hz crossover for all speakers. If your sub is good(and the 16-46 certainly is) it will be still better than the M80 in that 40-80Hz octave and should be allowed to do what it does best, relieving the M80s of part of the load there. Also, that crossover is suitable for the VP-150 and QS-8s, so don't be concerned about any tweaking of that area(even if your equipment can set different crossovers).
Last edited by JohnK; 10/20/03 01:50 AM.
