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

4.9 Rating 43 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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“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 3 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”

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Posted 3 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 3 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 3 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 3 years ago

“After dealing with less than stellar NOS RCA triple mica black plates that left me wanting in clarity of midrange, I thought I’d give these a try. It is night and day difference! A veil has been lifted and the midrange is the most defined I’ve ever heard in my system! If you’re thinking about these, stop what you’re doing and order them. My Tannoy’s have never sounded better! Upscale Audio delivers again!”

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Posted 3 years ago

“I was not expecting this tube to make as significant of a difference as it does. I have had it in my system for a month. It replaced the stock JJ preamp tube in my Rogue CMIII integrated. As soon as I installed it, I noticed how much quieter it was than the JJ. I hesitate to claim the Rogue sounds like a completely different amp, but the fact I'm contemplated it tells you something. The midrange has more flesh to it, not really more warmth, but more body and detail. I hear more detail and air in the treble, as well. To sum up, the Brimar noticeably improved the sound of my system and I would not want to go back to the stock tube.”

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Posted 3 years ago

“Great set of tubes. Haven't even got them burnt in yet and they are the best I have.”

Helpful Report

Posted 4 years ago