Brimar CV4003 / 12AU7 Special CJ Test Grade / No Cryo Reviews

4.9 Rating 46 Reviews

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Phone:

909.931.9686

Email:

joel.m@upscaleaudio.com

Location:

2058 Wright Avenue,
2058 Wright Avenue
California
91750

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Craig Hinkel

Verified Reviewer

“I purchased these tubes for back up. They are getting harder to find at a reasonable cost. I use them in my PLEVO400IA.”

Helpful Report

Posted 4 years ago

“Already wrote a review, and you posted it. Superb 12AU7 tube! Thank you Upscale!”

Helpful Report

Posted 4 years ago

Michael Thomas

Verified Reviewer

“These were a disappointment in my Rogue RP7. One imploded at startup and the other three with a replacement sounded awful. Replaced the set with new gold lions and the sound is amazing. I was really surprised as I have six of these in my Evo 400 power amp and they are sublime. Not a good match with the RP7.”

1 Helpful Report

Posted 4 years ago

“Nice upgrade from JJ tube on my RA Sphinx2. Mids open up and highs has more detail and air. Deep bass. Recommended.”

Helpful Report

Posted 4 years ago

THOMAS W. BORNE

Verified Reviewer

“Replaced a set of noisy new production Genalex Gold Lion tubes and these tube sound awesome. Used in a Rogue RP-5”

Helpful Report

Posted 4 years ago

Michael Reddoch

Verified Reviewer

“Sweet sounding tube! Lots of detail and great sound stage. Just what I needed to replace the preamp tube on my Rogue Cronus Magnum 3.”

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Posted 4 years ago

“Using 2 of these in my old CJ preamp and like them a lot. If it helps, I'm more into timbre than "detail", not that these tubes lack detail.”

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Posted 5 years ago

Eugene Levine

Verified Reviewer

“This was my second order of these tubes - the first pair gave up after more or less continual use. They are the best-sounding NOS tubes I have found for my Rogue Sphinx 2 (with the possible exception of Telefunkens, which are no longer in my price range).”

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Posted 5 years ago