Elrog 300B vs Takatsuki 300B tubes


Has anyone heard the Elrog 300B tubes ? I read an article which mentioned that the Elrog 300B delivers 15% less power than a traditional 300B tubes. Can anyone confirm that it is audible ?

I am choosing between Elrog and Takatsuki 300B tubes. I would prefer the Elrog because it is cheaper and supposedly wonderful but if it really sounds less powerful then I have to rethink.
pani
Hello Bill, 
It's surly conceivable that your PS Audio 10 could provide a definite positive effect. I gave it my best shot but with the 3rd failure I recognize that enough is enough. Your fate may be different from mine. 
Good Luck, 
Charles, 
Bill,
 If you ever consider a back up pair 300bs  the XLS is a very good option.  George Lenz told me that some  older pairs of these tubes are approaching 40,000 hours of use per some of his long term customers.
I can believe that,  this is a very stout output power tube.
Charles,  
I know of 2 systems that run Audio Note with Takatsuki with good results. One has 2 tubes per channel, 4 total, for about two years and had Western Electric prior to Takatsuki. The other system has 2 tubes for over a year. I don't remember AN's models, but can dig up the info if needed. I have both Coincident Frankenstein MK2 and Border Patrol amps, both are great with Takatsuki.
Any of you people in Chicago . I have 4 300b amps and tend to use EML
solid and mesh plates . Two amps are transformer  coupled. I would Like to hear a pair of elrogs.
my phone 708 645 1237
cell 708 446 7576
thanks Rick Berta
Hi All,
Read through all 13 pages with interest and fascination and thanks to all who shared their insights. I have the Franks and CSL that I recently switched up to PSVANE WE replicas. Been running them for two month with about 200 hours on them. They have been spectacular IMHO. A friend told me about the Elrogs and looked them up and was led me to this thread. My question would be did Thomas Mayers recent acquisition of the Elrog works fix the 300B issues. According to his blog he is selling out all current production tubes and have no quality issues except for shipping damage. 2nd, I am wondering with charles1dad, with the all the heartbreaking issues he has had with the Elrogs in his Franks if tried putting back the original spec rectifier tubes. The Franks use 5U4GB and Isreal says they are different than even 5U4G. I believe he said 5U4GB takes more current. Charles mentions he is using nos Mullard GZ37, how compatible/reliable are they? Have other Frank users had similar unfortunate experience as charles with the latest batch of Elrog 300B?

Regards