Brimar CV4003 / 12AU7 Platinum Grade / Yes Cryo Reviews

5 Rating 50 Reviews

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909.931.9686

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2058 Wright Avenue,
2058 Wright Avenue
California
91750

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“WOW what an improvement! Sooo much more crisp detail and expanded soundstage.”

Helpful Report

Posted 2 years ago

“These are terrific tubes in the gain positions of my Primaluna Dialogue Premium amps (used as monos). The soundstage size and depth is exceptional, the bass is deep and very detailed. Extremely quiet with oodles of unforced texture and detail. Front end is PS Audio DSD (with Sunlight firmware-amazing) and BHK preamp. Speakers are Usher Audio Dancer Mini Twos with three REL S-5s.”

Helpful Report

Posted 3 years ago

“I swapped the Brimar 12AU7 tubes for the stock tubes in my PrimaLuna EVO 400 preamp. I immediately noticed the Brimar tubes gave a smoother tone with improved imaging. I like the stock PrimaLuna preamp, but the Brimar tubes have a more appealing sound in my system. Thank you Upscale Audio!”

Helpful Report

Posted 3 years ago

Gregory Brigman

Verified Reviewer

“Great sound from these. One went noisy from purchase last year. Replacing.”

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Posted 3 years ago

“Absolutely fantastic upgrade to my Cayin HA 6A tube amplifier. No noise in any channels, pure analogue bliss! Recommended”

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Posted 3 years ago

Roy Rochelle

Verified Reviewer

“Excellent tubes!”

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Posted 3 years ago

Richard Leblanc

Verified Reviewer

“Excellent sonic performance, specialy in the bass.”

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Posted 3 years ago

William Melillo

Verified Reviewer

“utterly fantastic tube. Used in the cathode follower stage of an all triode RIAA that is very revealing, and this tube does not disappoint.”

Helpful Report

Posted 3 years ago