I have a Peavey Prowler amp that came with 2 6L6 ruby tubes. From my understanding these tubes suck, and if my amp has more potentiel for a better blues sound, I would very much like to make it happen. I was looking at the Fender GT6L6 tubes they are about 30 40 USD for 2.

Never changed tubes, more then likely I will take it in to have done, but if you have a better suggestion for better tubes be my guest. I'm not really on a budget either.