I also use a KT88 single ended amp. In regard to current production, I really like the Gold Lion reissue. What particularly do you like better about the SE KT88's? I've rolled a lot of tubes in that amp & may be interested in trying the SE as well. The best I've heard (in that amp) is an old pair of Tung Sol 6550's. Absolutely beautiful mid range. The old GE 6550's are not far off from the Tung Sols. The Gold Lion KT88 reissue doesn't have as much midrange warmth, but its no underachiever there & does exhibit more detail than the 6550's listed above. It also does that without being etched in any way.
Sophia Electric KT88-ST impressions
I've had a pair of the SE KT88-ST in my amp for a short time. 75+ hours of play time.
They perform better than everything else I have here. Gold Lion KT66/77/88. PSVane 6CA7-Z'S black bottles. Wide open mids. More linear performance from top to bottom. Great extension at both extremes. Balanced and musical. And, I'm using them in an ampsandsound Mogwai. 3 single-ended watts into 8 ohms. Time will tell re: reliability and longevity.
Any else tried these?
They perform better than everything else I have here. Gold Lion KT66/77/88. PSVane 6CA7-Z'S black bottles. Wide open mids. More linear performance from top to bottom. Great extension at both extremes. Balanced and musical. And, I'm using them in an ampsandsound Mogwai. 3 single-ended watts into 8 ohms. Time will tell re: reliability and longevity.
Any else tried these?