Brimar CV4003 / 12AU7 Platinum Grade / No Cryo Reviews

4.9 Rating 147 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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“Overpriced. I paid for highest grade and these were noisy. There are many better tubes for the money.”

Helpful Report

Posted 4 years ago

Mitch Petersen

Verified Reviewer

“Exactly what I was looking for, sounds great on my Crack amplifier with a 5998.”

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Posted 4 years ago

“These tubes are the real deal. Have all 6 in my primaluna dialogue preamp. Great soundstage”

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Posted 4 years ago

Jack Szydloski

Unverified Reviewer

“"THE TUBE GODS HAVE BLESSED US!!!" says Upscale Audio about the Brimar 12AU7. Well, yes. Yes they have. My Rogue integrated amp and Sonus Faber Liutos are a few years old now and, like many audiophiles, I was cruising the internet looking at upgrades. I had already upgraded tubes twice and was happy, but thought I'd give these highly rated up Brimars a try. The improvement in sound was unbelievable. For under $200, I felt like I had a new stereo system. I'm not kidding. My advice is, if you need some new preamp tubes, get these. For what these tubes do, the price is extremely reasonable.”

1 Helpful Report

Posted 4 years ago

PAUL HUTCHINSON

Verified Reviewer

“Big improvement over the stock PL tubes!”

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Posted 4 years ago

Author didn't leave any comments.

Helpful Report

Posted 4 years ago

Daniel Geiger

Verified Reviewer

“Sounds good, but have not even tried it against the stock tube. The cryo treatment seems to be hyped by Upscale audio, but appears to be audio snake oil. Google around a bit and you will find lack of any changes in comparative listening double blind tests. From a material science perspective, cryo makes no sense either, except for really bad tubes getting destroyed by strong temperature gradients.”

2 Helpful Report

Posted 4 years ago

“Ordered a matched quad of the CJ Special Test grade to try in my Rogue Audio RP-7 preamp. I think the stock JJ 802 tubes sound excellent, especially for the cost. Have about 50 hours on these Brimars and there was certainly a change for the better from initial installation to this point. Very nice soundstage, no harshness at all in the treble, and just a very clean and clear musical presentation.”

Helpful Report

Posted 4 years ago