Those woofers are gonna pull 12A nominal and 25A peak. If you're going with separate amps, I'd say put the woofer amps by the LFR. Otherwise wire them with that 0000 cable I posted. smile

On the other hand, you should try to keep the signal cables as short as possible to minimize interference. I think you should hire a P.E. to investigate this and come up with stamped drawings.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated