Its been a month, I can safely say that you guys were dead on right. These phones do the guitar like no other, very glad I sent the RS2's back and bought these. I really like them with flats. They are my favorite phones now, been selling off the others. Trying to build the perfect tube amp for them which is a challenge with the low impedance, right now I'm using a juiced up SOHAII which does a wonderful job.