I'm wondering if anybody has recabled their PS1000 with balanced cables. Have you noticed an increase in sound quality when used with a fully-balanced amp and source? I have a new Headamp GS-X on the way and am also thinking about getting a PS1000. I once read on this forum (but now can't find it) that Grado headphones don't benefit all that much from balanced cabling. What's your experience been?
You can search this thread for some previous comments about balanced termination. Mine were 4-pin XLR terminated and I loved it. BUT, my BHA-1 amp is known for producing better sound in balanced mode. To me, balanced sound improvements are more about the DAC/amp than the cans themselves.