I won't test the Sim because I don't believe in its philosophy which was proven by Tube Dude to be not accurate by null testing it.

If Medicine is telling me that smoking is bad for my health, proven by numerous cientific tests, I won't start smoking just to prove they are right.

Some guy did it regarding McDonalds... but I'll pass it.

As for the maximum SPL, I owned the Craffts (also studio monitors) which have a max of 120dB (at 1,25m ) with THD<0.1%. All I can say is that I get a more live sensation with the Yammies and I also believe in metal drivers for their better stiffness/weight ratio (Beryllium is the best of all).