TK16
Headphoneus Supremus
Just joking. No offense intended to Tesla or Thurston. Actually started with jokes about crazy price being asked on eBay for a triplet of tubes.
Never heard Teslas, if they are that good, I'll have to give them a try.
Teslas are way too forward sounding to me, great sounding tubes but that is a dealbreaker for me. So much so they get 0 playtime. If highs are your thing you will like them.