Thought I would start a discussion area for these often overlooked headphones....
Many folks state these are treble heavy, shrill and sibilant...I have had my set for years now...
I find using them with a OTL tube amp they can be spectacular....a great set of headphones...
They give me clarity, a great soundstage, acticulate but have that nice little warmth on the low end IMO...makes the bass very musical.
They are one of the most comfortable set of dynamic headphones, maybe surpassed by those ultra light AKG 7xx series...
I recently replaces the earpads on mine with new ones from Beyerdynamic direct...didnt want to change a thing about its capabilities.
Been using these in my rotations for the past few days, the Focal Clears are sitting in their case wondering whats up!!!

Using a Schitt Vahalla 2 OTL amp...wonderful pairing on high gain setting....works very well with the BH Crack and Mainline....
They have been replaced by the Amirons...sigh.
Alex