I've rolled both Genalex Gold Lion KT-88 and currently have Psvane KT-88TII in the amp with ear pleasing results for both. They tend to run hotter than the KT-120's but not like a furnace hot. I adjust the bias control to +/-80mA and both brands sound pretty darn sweet. Also have Genalex in the front sockets. The manual suggests several alternative output tubes but not KT-150. I'd probably inquire with them prior to making that swap.
What did you experience when tube rolling in a Carver Crimson 275?
Has anyone tube rolled in a Carver Crimson 275?
I'm thinking the single 12ax7 is part of the DC restorer circuit and the two 12AT7s are the drivers.
On the power output side, the amp is reportedly best suited to the stock Tung Sol KT120s. Is it safe to put KT150s in ? Has anyone tried anything other than the 120s? I'll check with Carver on the 150s.
I have done minimal rolling here. I have experimented only with the 12AT7s and the 12AX7. Stock or reissue tubes of good quality/low microphonics/noise sound great.
I'm thinking the single 12ax7 is part of the DC restorer circuit and the two 12AT7s are the drivers.
On the power output side, the amp is reportedly best suited to the stock Tung Sol KT120s. Is it safe to put KT150s in ? Has anyone tried anything other than the 120s? I'll check with Carver on the 150s.
I have done minimal rolling here. I have experimented only with the 12AT7s and the 12AX7. Stock or reissue tubes of good quality/low microphonics/noise sound great.