Frimpy wrote on 12/27/12 at 02:22:47:Are JJ EL34 different sounding from JJ 6CA7 ? My understanding is that one is a european designation one is USA. Do they both benefit from Hazen mod?
I do not have words to describe how satified I am with Deware's DNAs.
They are fast, precise, clean tight bass, smooth voices...and beautiful to look at.
Not all 6CA7 tubes are compatible with the Hazen Grid Mod (e.g. the EH aren't) but the JJs are. I really like the sound. Unlike Donnie, I've had no problem at all with any of them. (I used one quartet in a Torii for a year, replaced them, and have another set in the other Torii now. So twelve in all.)