I find that with C weighting my midrange is very quiet,at near 80db,its my bass only that i have turned up,and yes sometimes i listen to an entire cd at high level, perhaps 110-115db in the 40hz-60hz region. The sub isnt in my car right now, my 12" version with lab12,and 33hz F3 should be even better and louder with the same power (less power compression)My sub is actualy quiet,some of my mates have cheap pioneer 12"s getting 130-140db in car,thats just silly,cos it sounds like a piece of distortion anyway!
Cheers!