[driguy]

I would have posted this on the "Best Sounding Sub..." thread but it has been a while since has been active. My question is this. If I were to use three drivers (SW-12-16FR Servo subs) per side would I mount two facing forward and one back with the one facing back out of phase electrically with an open baffle setup? I am only thinking of using three in parallel due to the room size which is 32' x 20' x 12' with large openings to other rooms. My apologies if this has been answered before but I did not find it. Thanks, Tony

[WerTicus]

yes you would run the backwards woofers out of phase so they all push the air in the same direction at the same time.  The only real reason for running a woofer backwards is to balance the entire machine's weight better.  Your frame design might not need this at all.