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JADIS JA80 with 6550 or KT 88 or KT90 ?

My Jadis JA80 was built in April 1999 and came equiped from the factory with eight 6550 valves.

Before deciding to buy a new set of tubes, I would like to know some opinions about the advantage or inconvenience of using the KT 88 or the KT 90 tubes in my JA80.

Is there any experience of using these tubes (KT 88 or KT 90) in an amplifier designed from the factory to work with 6550 tubes?

Many thanks for your cooperation.
rato456

Showing 2 responses by rato456

rato456 OP
3 posts
 
Many Thanks for your advise Mang53.

After some more opinions I hope to receive, I will come back to you.

Regards

rato456
rato456 OP
3 posts
 
Thanks to all of you for your contribution.

This is to let you know that I have purchased the SVETLANA KT 88 and I that the sound of my Jadis JA80 improved a lot.
These valves are much better than the 6550 or the KT90.
Sound became much more airy and halographic; extremes much more natural , without loosing detailed.
I can assure that this was one of my best investments to improve my sound.

Regards specially to Khrys

Joao
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