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Re-biasing a CJ Premier 8

I am considering to get a used CJ Premier 8 amp, current tubes are 75%-50% of their life (12 6550 per side) and dealer recommends me to re-tube both units.

1.- Which are the best options considering a high price/performance ratio?

2.- Any word on domestic Svetlanas vs fying "c" options?

3.- What about trying KT90´s?

Thanks for your feedback.

Fernando
128x128flg2001

Showing 1 response by downunder

downunder
1,329 posts
 
Thye prem 8a's sound just fine with the Svetlana 6550's. Lew Johnson strongly recommends them.
I have also used EV KT88's and they sound slightly different. They are a little leaner in the bass so give the impression of slightly more extension.
I would listen to the amps as is , then make a decision on how it integrates into your system.
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