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In Reply to: RE: Mesa Engineering & Ruby Tubes ...good for audio ? posted by Michael Samra on February 24, 2015 at 14:26:05:
Nah, tubes marketed towards guitar players/amps are Not tested or selected for higher distortion. If anything they're sometimes matched for plate current because many of them find their way into a class AB2 rig, with crazy HT and fixed bias. Otherwise it's just a label.
So yes they're fine for hifi, assuming a 6L6, 6550 or EL34 is.
Same goes for the 12AX7's, some are tested for Low microphonics,
but so what? You can do better in this area for hifi, cheap.
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Follow Ups
- RE: Mesa Engineering & Ruby Tubes ...good for audio ? - GSH 18:00:55 02/24/15 (1)
- I think some makers do rate their tubes for distortion. - Tre' 08:35:52 02/26/15 (0)