FWIW, I briefly replaced the Tung-Sol KT120's in the CMII, and rolled in Genelex Gold Lion KT88's. Perhaps they were slightly sweeter, but I missed the greater authoritativeness of the 120's.
Rolling KT150s in Primaluna hp integrated
I’m a mere five hours into these. This is an alive and kicking tube. It’s like it had a double espresso before the music starts. I’m hearing big and strong delivery, but that’s so overwhelming that I cannot focus on midrange. It’s clear I need some time with these.