audio quality =/= coloration
I'm just saying that they probably have similar levels of audio quality in general with the M-100 topping the pros, not what frequencies are emphasized or recessed. I may be wrong, though. Maybe someone who has both can input on them instead of me spouting nonsense
I'm afraid I'll have to be the one to call you out
Owned the Pros and they were a great phone. Now own the M100 and they are a vastly superior headphone in every way, sound quality and quantity.