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Audio Research Reference 250 capacitor issue

One of my reference 250amp fuse blown and found that the capacitor is bad and audio research has upgrade kit to replace Teflon capacitors with latest ones. The also have new wiring in the upgrade kit. Has anyone experienced this ? I see they discontinued Teflon capacitors a year or two back.
veerapaneni
bifwynne
2,206 posts
 
Brill ... please clarify. Did ARC simply fold on the white Teflon cap issue and replace for no charge the white caps for the new gold foil caps?? No questions asked??

ARC upgraded my Ref 5 to the SE version in 2013 and used the white Teflon caps. By now the Teflon caps are fully broken in. I think the SE version sounds better than the old Ref 5, but how can one tell if the Teflon caps sound dull and lifeless ... as compared to what???
dbarger
215 posts
 
"Dull and lifeless" sounds like a tube issue, not caps.
bril12
13 posts
 
"Dull and liveless" compared to the sound just after the upgrade, when the phono played wonderfull. After a long break-in it never reached this level again.
Of course I first changed the tubes (both steering tubes and the power tube), but with no result. So probably one or more caps did broke down. After recap (white teflon again) the Phono 2SE worked fine again.
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