Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
I'd probably use them as distant subs then, and use a different kind of sub closer to the mains. You really want to take advantage of the flanking sub configuration to smooth the upper modal region. Use your larger, more distant subs with low-pass set at a lower frequency to help smooth the lower frequency modes.
Flanking subs need to sound good in the ~120Hz region. Distant subs should be low-passed below 60Hz, to prevent localization cues.