I have a fender blues deluxe, and I want to replace the tubes because I get a lot popping and crackling(the low end is also muddy when cranked). My amp has 3 12ax7 Groovetubes preamps and 2 6L6B power amp Groovetubes. I am looking for advice on good tubes that will add a little clean headroom to my sound. I have never changed tubes before so I am not sure about matching/biasing. Please help!

1989 Fender MIA Strat Ultra
2006 Fender Standard Strat
1985 MIJ Fender Telecaster
Martin SPD-16R

Fender Blues Deluxe

Fulltone OCD :
EH Memory Man
Xotic RC Booster
Boss RC-20XL(looper)
Last edited by 89stratburst at Aug 22, 2008,
try 12at7 tubes for more headroom. easily swapped for 12ax7s, they have the same pin layout.