My main headphone is the Audeze LCD2 (revision 2). This is a planar magnetic design, which has extremely fast transients reminiscent of electrostatics, but is more efficient and can be used with a regular amplifier. The bass on these headphones is killer. They are flat down to something like 10 Hz, thanks to an enormous transducer. I had Igor re-cable these. One benefit of the re-cable was that imaging (headstage) went from somewhat flat to holographic and three-dimensional. Resolution and dynamics improved.
The new cable is oxygen-free-copper, Litz wire, cryogenically treated. (I don't favor silver wire.) There is a sophisticated teflon dialectric and weave pattern. The yellow outer cover is Kevlar (how about that? a bullet-proof cable, ha ha) which has low "microphony" (that means if you rub the cable, it won't make a lot of vibration and sound in your ears) and also helps control the complicated internal weave.
The TRS plugs are from Furutech. Igor made one modification. Their ground tab is actually magnetic steel, if you can believe that! (Bad for sound, and surprising to find in a boutique part.) Igor dremeled out a channel to hook up the ground directly to the gold-plated copper.
The grilles are a bit resonant, so Igor added damping material.
Finished headphone. There is a pressure-relieving clear plastic strip across the top. I found the headphone to be uncomfortable, applying too much pressure to my jaw. Igor added this pressure-relieving strip. The headband remains adjustable and still applies enough pressure to stay on my head.