If you guys have ever wanted the absolute baddest of the bad sub (you literally would have to spend $4800 to surpass its performance, especially in the 12 to 20 hz subsonic region) the Monoprice M-215 sub with two 15" drivers and a 2000w amp is the shlt.
It's actually made by ATI, and this is the version with the re-designed v1.2 amp installed.
Normally $2500, its on sale with code MARCH15 brings it down to $1295 with free shipping (don't bother getting the "liftgate" service, Fedx already does this automatically with items over 175lbs )
Don't underestimate this monster, it's 220 pounds of chest pounding destruction
https://www.monoprice.com/product?p_id=38543&AID=11051853&PID=4485850
Screenshot 2023-03-16 at 12-26-27 monolith m-215 at DuckDuckGo (resized).png