this is louder (by ear) than anything i've heard or owned. my bro has 2 L7's and i blow him away, i got a cabin gain advantage on him, cause he got a suburban. the 5ft@36Hz was WAY loud!! the 5ft sealed there was a noticable drop in output, but don't get me wrong, it still WANGed! and the lows were better than the 36Hz box. the 6ft@25Hz ...higer freq say above 40Hz, louder than sealed, not quite as loud as 36Hz...but the lows, sub-30Hz will literaly kick you right in the back of the head. my only competition is my friend with the 2 HCCA's and a bd1000 on each one. but we'll see soon enough. he agreed to go get metered with me after i got this new box donecomon answer my question, if you could //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif three posts up^^^