I entered my Passport in a small sound-off at Hooters today. I'm running 4 Elemental Design 13kv2 in a sealed downfire box off 2 sae-1000d strapped at 2 ohms. It only hit a 143.2 with a termlab mic, but considering the flex that a Passport has, and the intense heat out there, I can't complain too much. No one did anything spectacular. I think the highest reading was a 149.3 in a higher class than me. BTW, I have never built a stereo for competition purposes (including this one) and this was my first time to ever enter into a competition, so I was pretty stoked about it.