The Marshall Roar
This is my second time purchasing these tubes for my JCM 800 2210. First batch lasted me 5 years of brutal use: gigs, at home, you name it..not to mention a way too hot bias issue. I mean, I inadvertently burned the red JJ logo off before I fixed the problem, and these power tubes never lost functionality or tone. I began to notice a subtle fuzz and muddiness in distorted chord work, so I bought a fresh set and my amp was back to being a monster. Not only is the distortion loud, proud, and articulate, the cleans are full and piano-like. I play jazz, blues, and classic rock (from Free to Ozzy) and these tubes sound great with my Marshall.