Having guarantee issues with KR Audio?


One of my KR Baloon tubes decided to permanently sleep in this morning, so I spoke with Israel Blume of Coincident, and it seems that not only is KR Audio not going to be supplying tubes for amps other than their own any longer; but getting them to honor their 6 month guarantee is also a problem. He cited a case where they said that the tube being returned was "not used properly". Not used properly in a Coincident amp??
The tubes I got through Coincident were purchased in December. DECEMBER! I checked the KR website, and clearly they claim to have a 6 month guarantee.
The best he could do is to offer me a replacement tube he has in stock for $300.00. I'm going to buy it, but man am I steaming.
I just wondered if there are any other KR tube users who wanted to rant.
azaud
I have a five month old pair of KR T-100 tubes in my Vinnie Rossi LIO DHT. I’m getting noise from one tube. There is a month left on the six month warranty. I emailed BEST300B.com and have not heard from them yet. Has anyone else had reliability issues with the T-100?
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I'm far less than impressed by BEST300B.com and Franciszek Fikus (aka Frank.  I purchased a pair of " 300B Riccardo Kron Limited Series" (July 2020) and they shipped without the normal test certificates, stating tube measurements. When I complained, Frank said, quote "I am always at your disposal", and sent me a PDF containing test certificates, unfortunately not for the two tubes I had purchased (each tube is individually numbered). He seems to believe that "close enough is good enough". When I emailed him again about this problem, I never heard back from him, despite a second follow up email.
I emailed Eunice Kron to see if the factory kept records (easy in this say an age) only to be told no.
So a sour experience for tubes costing US$1,250 from the very get go.