New JJ Tesla tubes


Greetings, I'm seeking information regarding the sonic performance of the "New" JJ Tesla, Black Sable 12AX7 tubes, especially if you are using them in a McIntosh C2200 or C2300 preamp.

Any info on these tubes is greatly appreciated.

Cheers,
Bennett (aka:hififile)
hififile
Hififile, without being crude, they suck big time. Compared to NOS 12AX7 tubes, the JJ's sound broke.
Never had any luck with JJ tubes. Dull sounding shorts and premature tube failures come to mind when you ask how JJ Tesla tubes sound.
New Tung sol 12AX7's are excellent. Best I have heard even over NOS in several applications, and yes they have that big warm but dynamic sound like good NOS. Only ones as good are the Telefunkens, MAZDA's, & Baldwin/Sylvania tubes running between 200 and 300 per matched pair. So you can get these at like 40 per matched pair well worth it easily the best buy today in current production in my opinion. JJ not nearly as good from my experience, of course I think EH sucks too so maybe its just taste at the end of the day.