Sent an email off to martin Logan about bending the headband to better fit my skull, originally it had a very round profile.
Scott Gribble , a service technician at martin Logan replied "Yes, it is possible to “bend” the head band, it is pretty sturdy and it is intended to do this. Some of the guys around here who have these have done the same thing with good results."
So, I bent mine, in a more oblong shape, now the headband makes contact evenly, not just at the crown, helping them better grip my head and not slip around.
Comparing the sound of the Mikros 90 and my slightly modded Grado 325i's, the 90's are most definitely superior in bass, in extension and speed, and plumbing the depths of my recordings. I am hearing bass lines and kick drums like never before, the slam and definition is far better than my Grados. In complex passages, with a lot going on, especially really fast drumming like Lamb of God or the new Avenged Sevenfold, the martin Logans sort it all out, allowing you to hear the deepest notes, where the Grado's started to fail and get mushy in the bass. Using Stereophiles test disc, I could hear the 25hz 1/3-Octive Warble Tone at -20db clearly. The mid-range is very neutral, voiced a lot like my Grado's. On the hi end the 90's really sing without ever being offensive or harsh, and well recorded cymbals have a very realistic shimmer and decay that my Grado's are only a lesser cousin at reproducing. Having over 100 hours of use so far, I am very happy how they have ripened and pair very nicely with my Ray Samuels Predator.
Edited by PredatorZ - 11/20/13 at 5:29pm