Well I just back from a comp near my house. With 1 12" Brahma with 1000 watts in a 2 ft^3 box tuned to 36hz I hit 139.3 db, which wasn't too bad for a daily set up. I came in 4th out of 9 people. The person who came in first had 2 10" SE's with 4 ft^3 tuned to 60hz. What can I possibly do to get some more SPL...minus a new amp. I am thinking of building a bigger box, around 3-4 ft^3 tuned to about 45-50, just for comp...and then switch to my current setup for daily use. Second place hit 141.x, third was 139.7.