These tubes are everything I have read about and heard from people using Treasures.
My 6sn7 varient treasures have about 150 hours in the preamp.
KT88s arrived today. Let them warm up for about an hour. Biasing steady so played some music.
For the first hour they were edgy and it seemed like everything was crammed in the center of the sound stage. I had the same thing with the 6SN7s for 2 hours.
After 2 hours the KT88s settled down or something because everything is coming from the right places. I know 2 hours on the treasures is not the last word but the potential is off the charts.
The Peter Barden pictured below was like music was spinning above me trying to lift me off the couch.
Thanks to those of you using Treasures and sharing your experienced.
There is magic in those fire bottles. BTW they replaced a quad of vintage Tung Sol 3 hole 6550s.