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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
bartokfan
664 posts
 
Saki I plan to stay with the Jadis tubes in the JOR. These are very expensive tubes and to get any quality that will equal these 90's will cost me a fortune. I suggest you stay with the cayin tubes, which are no doubt FIRST CLASS tubes. IOW don't go changing anything. What you can take a look at is your digital sourse and speakers. Do these 2 match up with the A88 quality. You gotta look at this system thing with some logic. Changing tubes isn't goning to make a class B speakers/digital sound any better.
Paul
saki70
907 posts
 
Bartokfan ; I agree . I just acquired this amp with a pair of Ref 3a De Capo i's , which I auditioned together . So I was just thinking ahead , right now I am quite pleased . But we all know how long that can last !!! I would be interested in knowing what my options would be , when that time comes . Just trying to learn .
bartokfan
664 posts
 
I don't think the Cayin is as versatile as the Jadis in accepting various tubes. btw did you feel obligated in buying the speakers with the A88? Which city do you live that has Cayin to audition?
saki70
907 posts
 
No , I did not feel obligated at all . The dealer is in Clearwater, Florida .
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