KR 300BXLS Tubes

Tubes Asylum

Questions about tubes and gear that glows. FAQ

I have an Art Audio Jota in the HC version equipped with the KR tubes. I don't have a manual as I acquired the amp in a trade a long time ago, but I'm going to make the assumption that the XLS type tubes are required and a regular 300B would die an early death due to the increased voltages. Not sure exactly how many hours the existing KR's have on them, but I'm guessing in the 1500 hour range. They still sound great and they don't need replaced probably for quite a while, but I'd like to have some backups regardless.

Looking for general opinions here on current production 300BXLS tubes. I've heard some negative things about the KR's and that quality has taken a nosedive since Ricardo passed away. I have absolutely no idea whether what I'm hearing is fact, opinion or sour grapes, so any input here would be great. I've heard as well that the Emission Labs XLS's are extremely well built and of very high quality, but perhaps not quite as musical as the KR's. Any thoughts or sharing of direct experiences would be appreciated!

Bill

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Parts Connexion

Topic - KR 300BXLS Tubes - bcowen 07:21:37 01/09/16 (2)

RE: KR 300BXLS Tubes - h00hbt 12:08:33 01/11/16 (0)

RE: KR 300BXLS Tubes - Not Yet There 11:38:41 01/11/16 (0)

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