Just wanted to chime in here and mention that I have measured the V-80 TrueBlood version of the M-80, which is identicle acoustically. Measurements are here: http://www.innerfidelity.com/images/VModaV80TrueBlood.pdf .
I also wanted to say that I love these cans. I think it was Steve Guttenberg at RMAF who said "these are Beats done right." I couldn't agree more. If you've got a freind that's looking at Beats or Ludacris cans, steer them over to V-Moda.
Great job, Val!
Now, this is a cool endorsement, lucky you Val ;)