Need help picking between 6550 and KT88 tubes


I have a Tube Audio Design TAD-60 and currently have a set of EL34 and 6CA7.

I'm looking to get a matched quad set of either 6550 or KT88.

I've read they are very similar, but would like to ask about the pros/cons of each.

Any input or recommendations would be appreciated.

Thanks
James
mrkoven

Showing 1 response by koegz

do you buy your tubes PL(platinum tested)? I have been told that is the only way to buy. it is 3 burn inns and tested after each i believe. I have been emailing jag music for pricing. I would require 24 + 4 extra kt88-eh-pl produced in pertersburg russia. any thoughts? I have also concidered kt88-gl-pl, which are gold lion, as well. anyone else looking for the same?