In answer to your first question, I've not compared the electro harmonix's to the sovteks but I have compared them to the 6h30 dr's and they compare very favorably particularly when you consider price. The 6h30 dr's are better but not $250 a pair better!not even close. I can live with the electro harmonix's they sound very good!!
I purchased mine from the tubestore but can't remember whether they were matched or not, all I know is they sound great.
I would talk to audio research and see what they recommend as electro harmonix is their stock tube for all of their equipment.
I purchased mine from the tubestore but can't remember whether they were matched or not, all I know is they sound great.
I would talk to audio research and see what they recommend as electro harmonix is their stock tube for all of their equipment.