I agree with the above. I must have 200+. There is an easing off, an opening, more texture and colour. They are NOT perfect (sorry Grover). On my system, which is admittedly a bit lean, there is a tendency to underline and project the midrange. I would have preferred something a tiny bit darker and richer. Then again I have certain reservations about my single-core speaker cables and I don't know how my ice amp would sound in another context, so don't take anything I say as gospel. If I were foolish enough, i would say these interconnects would go to the top of their price class and probably way beyond. I think they are good enough to reveal what is going into them and out. I don't think they would disgrace themselves in a hi-end rig. I wish we could finaly hear what the story is/was with the speaker cables. I have a serious itch that needs scratching. To answer you directly Rob, there are big changes from the 50 hour to the 200+. You wouldn't really hear that unless you literally walk away from the burn in and come back much later. The changes are gradual.
