Switching tubes

[Rick Triant]

I have a PRS Blue Sierra 50 1 X 12 combo with EL34's. Can I safely try out 6L6's and just re-bias, or is it more involved and not a great idea?

 

[WEDGE]

https://www.prsguitars.com/csc/manuals/PRS_Blue_Sierra_Amp_Manual.pdf

Yes according to the manual