Ron, I know what you mean. My mains are -3dB down at 22hz. They are very capable. My Sub fills anything in at where they start to roll off (somewhere in the mid 30's)to where the sub rolls off (-6dB at 16hz). It took a while to decide to run my center on small. The center is rated down to...
My system sounds best with Mains to large / Center to small / surrounds to small. Ref 30 is set to Sub ON THX. These settings send full range to my mains and any bass from center and surrounds to sub w/crossover set to 80hz. The sound in my system just sounds fuller when mains are at large. Just...