Best 12AU7?

What is the best 12AU7 or equivalent? NOS or new production. I like brighter sonics with good treble air. Thanks!

olds1959special06-20-2024 10:29pm

tksteingraber Details Discussions Posts This discussion Message User 603 posts 06-21-2024 at 05:33pm Copy Comment URL Report Comment Edit Delete Agree Telefunken are the best I have heard for a detailed brighter sound. Rca cleartops are an amazing value and sound extremely good on the brighter side as well. Can’t go wrong with either.
olds1959special OP Details Discussions Posts This discussion Message User 9 posts 06-21-2024 at 06:58pm Copy Comment URL Report Comment Edit Delete I really like the mil spec triple mica black plate RCA 5814A I just found. Detailed, smooth, not dull, and not too bright either.
robert53 Details Discussions Posts This discussion Message User 444 posts 06-21-2024 at 07:27pm Copy Comment URL Report Comment Edit Delete Upscale Audio has very good NOS and new tubes. Check them out.
robert53 Details Discussions Posts This discussion Message User 444 posts 06-21-2024 at 07:32pm Copy Comment URL Report Comment Edit Delete Also, Vintage Tube Services - Andy Bouwman.
inna Details Discussions Posts This discussion Message User 7,296 posts 06-21-2024 at 07:41pm Copy Comment URL Report Comment Edit Delete I use RCA black plates from 50s in driver position, very balanced and full sound. But I also use Mullards 12AX7 long plates in preamp. Excellent match, anyway, but it won't give the best high frequency extension.