Today, I'm building a HUGE box tuned super low... 6 cubic feet (gross) with a 6" aero port tuned to 20HZ to be exact. That right, I said 20 hurtz. This box will be home to 2 Savard Audio HO Elite 12 in subwoofers. I want this thing to get down, dirty and low.

I got my inspiration from another video I watched linked
here    • How to Design a Subwoofer Box that pl...