Be careful with the KR845 tubes as they do not have the same electrical parameters as the standard 845 tube.
18 responses Add your response
Thanks for the responses.
My amp is autobias with bias pots so I may stuck with a typical 845 parameter tube.
The transformers are really beefy on this amp, so I will check out the differences and see if I can try the KR's.
Are the KR's more like the 211 parameters, a half way between 211's and 845's or something entirely different?
Has anyone had 2017 experience with Elrog? I would like to try them, but the data I've found online is mostly from their early days and it was hard to tell if the troubled ones simply failed, or failed and caused amp issues (I never read definitively that the latter happened to anyone, and I also realize it's based on amp design too and the amp's fault handling capabilities).
If so, where did you buy them?
I have a collection of six dead Elrogs. Purchased them through the years. Wish Elrog would get their " stuff " together because they were great tubes. I am currently running the Psvane 845WE's and I am pleased with them.
I would have to say that the Sophia 845 MK3 are also nice tubes. In my system, the Psvane's have a more controlled, refined sound to them and in the same system, the Sophia's have a slight tubby sound to them. Both are good tubes. When the time comes for me to replace, I'll go with another pair of the Psvane 845WE's.
I have Elrogs I bought about 4 months ago and I love them too, but they sound better in my Thoress mono blocks than they do in the Melody 845 integrated I also own. Not bad in the Melody, but I think I actually prefer the regular 845a's in that--the Elrogs and Shuguang 845bs kind of sound a little too forward to me in the Melody.
The Elrogs are the best sounding 845s I own (including the Melody branded ones) in my Thoress by a good margin. Very, very nuanced relatively speaking, and the other 3 sets all sound very good already. Better microdynamics and finesse, but still ballsy when they need to be. I suppose they should be at $1800 a pair or whatever they cost.
I, of course, hope they last. I probably only have 150 hours on them so far.
I’m using a full set (including driver) of these Sino 845 tubes in my Triode Corp TRX-M845 amps. https://www.tubedepot.com/products/sino-845-power-vacuum-tube
They sound great and are a favorite of the Viva amp guys. Very inexpensive considering the quality.