Well, it Viridian with three "i"s, and actually it would tell you more about my choice of music than anything. I'll leave it at that.
I think that most competently designed amps will get you there. I do notice that you left out EL84/6BQ5 from your list, and this is one of the best tubes on planet earth and cheap to boot. It works well in push-pull as in the Music Reference RM-10 as well as single ended as in the Zen amps. Don't discount this excellent tube. The 6L6 or 807 is an excellent tube as well. Just because it shows up in guitar amps doesn't mean that it is not extremely linear when used in the correct circuit. High efficiency speakers make these, and many other, tubes viable. We're all here to have fun.
I think that most competently designed amps will get you there. I do notice that you left out EL84/6BQ5 from your list, and this is one of the best tubes on planet earth and cheap to boot. It works well in push-pull as in the Music Reference RM-10 as well as single ended as in the Zen amps. Don't discount this excellent tube. The 6L6 or 807 is an excellent tube as well. Just because it shows up in guitar amps doesn't mean that it is not extremely linear when used in the correct circuit. High efficiency speakers make these, and many other, tubes viable. We're all here to have fun.

