I now know why the CI amps sounded bright. Dusty just PMed me that they need at least an hour of warmup before playing. On both occassions when they sounded bright, they had been played with very little or no warm up. On those occassions that they sounded great, they had been playing several hours. On the day of our meet, they had warmed up about thirty minutes when Lensman arrived and we tried to play them. They sounded so bad, we cut them off and I changed to less aggressive preamp tubes, EH 6SN7s. We played them about 30 minutes more before cutting them off and switching to the Nuforce. I may try another comparo before returning them to CI.
