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Ruby el34s sound flat?

I just put a new quad of Ruby EL34s in my Quicksilver Mid Monos. The highs are limited, the sound stage is smaller and it just sounds veiled. Is this just a bad choice for this amp or do they just need to "break in"? Previously I had Teslas. I am using Gallo 3.1's
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tpreaves's avatar
tpreaves
2,686 posts
 
Give them some time then reevaluate.Just a thought.
hifitime
715 posts
 
I've found the Tesla tubes to be more musical than the Ruby EL34.But you really can't tell if they're not broken in enough.♫
storyboy
80 posts
 
Ruby doesn't make tubes, they rebrand them like most of the sellers do. They would benefit from a good outgassing burn-in, especially if they are Chinese. Leave the amp on for 24 hours.
hifitime
715 posts
 
Any Ruby I had was Chinese.Sino?
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