as in it's fundamentally a different tone? or it just breaks up sooner/later? I use a strat so if 'hard' would making the tone knife edged I'd like no part in that.

edit- and also it is neccessary to have a matched quad or is it sufficient to have two matched pairs?
Last edited by oggiedoggy at Mar 4, 2009,
I'm not an expert. I believe it has more to do with break up. I 'think' the differences are very subtle. There are a lot more things that will affect tone. Tung-Sols are fairly bright tubes compared to say JJ's. I would contact one of the big three online distributors and see what they say.

eurotubes.com (based in US)