Quote Originally Posted by Weister42
hey I just got my car stereo checked by a local shop and their AudioControl meter reads a peak of 149.6dB@60Hz(yes that's with CONSTANT sinewave), just .8 dB louder than my last score with an amp twice the size in terms of power.

Do you like 149dB of 60Hz bass?
I don't know if that's something to brag about considering that levels that high are multiples above the pain threshold! Also, levels that high can cause structural damage if you're indoors.

http://www.gcaudio.com/resources/howtos/loudness.html