hummm...sounds like a job for....a dirty sock....
wink
but seriously....
I'm starting to ponder that thought for my dual port Mirage sub....
there's nothing like trial & error testing...
a simple matter of finding the right cork....
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Outlaw 1070-Mirage M-290(main)+MCC(center)+Omnisat Micro(sides) nanosat(back)+ +PS12-90(sub)-Technics SL-5 turtable+Cambridge Audio 540P-HTPC - SamsungDTB-H260F HDTV tuner - Optoma HD 20 +100' Draper screen -lots of spaghetti and toys