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My Jadis Int amp. distorts in the upper mid-range


Hi All
Just bought a Jadis Orchestra Refference Integrated amp. (used) - and it's distorting in the upper mid-range levels..

It uses 4x KT-90, and 2x ECC83 imput tubes, with about 400 hours on them - and were the ones originally supplied new from Jadis.

I have 100% elliminated my other components as a posible sourse of the distortion..

Please help !!

Also: If I have to change my tubes, does anyone have first hand experience at what tube upgrade is PERFECT for the Jadis Orchestra Reference Int. amp.

Thanks
128x128saffy
detlof
1,899 posts
 
Pierre is absolutely right, heck, I should have thought of that.
Saffy, how is it going? Please report back to us!
Cheers,
saffy's avatar
saffy OP
81 posts
 
Thanks Guys - it was the Bias - Saffy
dennis_the_menace's avatar
dennis_the_menace
467 posts
 
... and, so how does the orchestra sound now?
springbok10
708 posts
 
2-24-03 "Did you check the bias?"
4-03-05 "Thanks guys - it was the bias"
26 months later. That's a pretty fair reflection of how long it takes to bias this amp:) But it sure is worth it! (I own one)
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