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RE: I know I have been tough on 12ax7 but.......

Posted by Mendel on January 27, 2011 at 17:47:20:
There may be some truth in that Anacrusis.My favoured 12ax7's do seem to have greater dynamic swing to them.But a windmill 5751 has great dynamics too. Depends on the tube combinations. Most of the time I find most 12ax7 too hazy and unfocused to be reminiscent of the real thing. But if you find the right one with the right combo of driver and output tubes, they can sound very good.
Diode, I never find 5751 bright in my system. Now, something like Neff's favoured Brimar or a Tele ribbed plate--that can sound bright with the wrong combo of tubes or in the wrong gear.
I guess its all a matter of balance with different tube sets in different gear. I guess 12ax7's have their place. In general I still think the 5751 is the better tube.