Since this is the Q701 appreciation thread I think you might be interested in this, since the Q701 is essentially the same as a K701:
http://reviews.akg.com/7459-en_gb/1/reviews.htm?sort=reviewTextLength
"Since then, I have recabled my K701 to dual-entry, using starquad silver/OFC cable, and feel I have reached my own personal auditory heaven. My cousin, who works for an ultra-high-end audiophile manufacturer/modification company, had his opinion of headphones changed forever when I brought my K701 and amp around for a listening audition.
I have several other headphones, each for different usage, but I feel that the K701 is definitely one that you should consider if you are searching for the ultimate home-listening headphone experience. They're called Reference Class for a reason!"
Ultimate listening experience. Auditory heaven. I could not agree more
Very interesting anecdote about his cousin who had is opinion of headphones changed. My opinion of headphones changed a few years ago when I first heard Denon D2000 cans. It changed again when I heard re cabled Q701s.