I'll find out soon enough when I see these next weekend at the Fujiya Autumn Festival. I'm particularly curious though that if the cupsize is the same, but the driver increased, what is sacrificed? Supposedly these are meant to be bassier headphones than the SigPros. But with larger drivers in same sized cups, what's the speculated impact to resonance, internal reflections, volume of air needed, bass decay, etc. There may be some balance Ultrasone could have done by increasing the port size to allow greater movement of air but that may impact isolation too.
Guess I'll find out next weekend.
Nice. Let us know.
The guy from RMC audio told me these PROBABLY start shipping a week from tomorrow so I'll keep an eye out for your impressions.