Elrog 300B vs Takatsuki 300B tubes

Parkie

contact Marc at trueaudiophile.com. They are located on the west coast in Oregon or Washington State. 

I I purchased a pair of Taks from him last fall and they shipped the same day. 

Great customer service for sure!!

Scifi

I have Takatsuki, Sophia Princess, EML and Elrog 300B and EML300B XLS.
So far, only the EML300B has started failing on me (lower gain on one channel). But I don't run my 300B for long hours either. 
FWIW

As you may have seen, one of the posters in here, Charles1dad, previously used the Taks as his reference before switching to the Elrogs... in Coincident Franks though, unfortunately for your information gathering.

P.S.  Charles, are those Elrogs still hanging in there after the amp mods?

Hi Cal,
As you noted I  did the amplifier cathode  resistor modification and I’m on my 3rd pair of the Elrogs. One tube has recently failed and the other is working fine. My conclusion is that the Elrog 300b despite its superb sound isn’t a good choice for the Coincident Frankenstein MK II. I’d recommend the Takatsuki and EML XLS as better companions. The EML XLS especially is an ultra robust workhorse tube that seems ideally suited for the Frankenstein’s particular demands. This tube is rugged, exceptionally reliable and sounds truly excellent with this amplifier.

In absolute terms the Elrog is a bit better sounding and has a "more" organic character. However the "bulletproof" EML XLS makes beautiful, dynamic and very engaging music without question. This is a top echelon 300b tube in my opinion. In the proper amplifier the Elrog is brilliant but it is seemingly too delicate for long term use in the Frankenstein. This is my conclusion and others may disagree.
Charles,