2. tech-talk
  3. 1149988070

New Tubes- Need Burn-In?

Hey guys- a question.

I just put a new matched quad of Electro Harmonix KT-88EH in my Cayin A-88T Integrated. I properly biased the amp, and after a couple of hours of warm up there is still a touch of "glare" or hardness evident.

I know these brand new tubes need time to burn in...how long a wait is reasonable before I decide whether the EH tubes are the ticket or not? Any tips on what to expect?

Thanks!
danlib1

Showing 1 response by boa2

boa2's avatar
boa2
1,551 posts
 
Dan,
If in a day or two, the glare is still there, I'd switch to a different brand. The one word I would use to describe all of the EH tubes I've tried is glare-o-rama.
More to discover