I've tried KT88s, 6550s, and KT120s in my new Jolida. The KT120s won the spot (spots) in my amp. They're only made by one company though, so the only options for 'em is to buy "cryoed" or not. I went with non cryoed and they really kick ass, and I've noticed a lot of respected tube amp companies are using 120s now. They're not expensive so I figured it was worth trying 'em. I bet New Sensor will roll out some supposed "Premium" version with gold pins and upscale gold printed glass...maybe a "presentation" padded box. If they don't they're missing a sure bet.
