my bad guys ive been away. well let me clear it up, i often listen to music that has alot of bass, i know im not going to hit the same numbers with every song cuz every song has different freq's. i guess wut im saying is that i want to be capable of hitting higher numbers. ive only been metered twice. neither on TL. and i know thats the only one that matters but, it kind of gives me an idea. my highest ive hit on my epic -160 is 152db (w/new amp) 149 (w/old amp) and on the audiocontrol meter 151.1db (w/old amp). so it gives me a estimate at where im at. i would but my 15's in a ported box but i dont have room. righ now my L7's are sealed two. maybe i have a higher spl than u would expect from sealed L7's is be cuz i have a custom vent cut out on my rear deck into my trunk. its prolly 18"x7" (rough estimate)