Well, here's a preliminary report with my 35w tube-based system. After about 75 hours, the double run of WE 16g speaker wire is sounding pretty good. Yet, I really loved the sound when it was first installed with 0 burn-in. Sweet and subtle. Since my system is balanced, Best-tronics built the Belden IC's with Neutrik XLR's with gold plated pins. After about 30 hours on the Belden, the sound seems less bold. The mild reverb used with vocalists now appears to be much more pronounced - making it almost efx sounding. When I re-installed my Pure Note Enhanced Paragon XLR's, the music moved forward and full-bodied - as I prefer. Will the Belden change much with more hours on it?