i know i'm dumb but can someone help me?

clayw · Newbie Alert Joined: 08 Jun 2005 Posts: 1

I have a mesa triple rec. and i want to change the tubes to jj tubes but i dont know how i mean i know how to stick em in the socket but do they need to be bias or what any info will help! thanks.

Pemobian · Goldfish Joined: 12 May 2005 Posts: 57

Any time you replace the tubes, the amp should be biased (speaking from a Marshall perspective here, but I believe a tube amp is a tube amp). This is not wholly required for the amp to work, mind you, but running new tubes that have not been biased will most likely result in uneven wear and could affect tone. Depending on where you get the tubes, they may do it in-store, or you might have to haul the amp to a Mesa service location in your area.