Brimar CV4003 / 12AU7 Platinum Grade / No Cryo Reviews

4.9 Rating 152 Reviews

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909.931.9686

Email:

joel.m@upscaleaudio.com

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2058 Wright Avenue
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Brian Crockett

Verified Reviewer

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Helpful Report

Posted 1 week ago

Michael Slattery

Verified Reviewer

“I wanted to like the Brimar CV4003 tubes, But they are extremly noisy in my preamp. Upscale Audio sent me a second pair only to have the same very noisy outcome. So both pairs didn't work for me. This is no reflection on Upscale Audio the customer service to replace them was good.”

1 Helpful Report

Posted 4 weeks ago

“Replaced stock JJs rear tubes in my Rogue RP-5 with these babies. Right away, a slight glare in upper mid that bugged me was gone. And there is a subtle woody warmness. Like the wonderful overtones you get from a nice cello. High end is clear and pleasant... not muted or accentuated. Dead quiet. Really nice tubes.”

1 Helpful Report

Posted 1 month ago

George Perry

Verified Reviewer

“In my Cayin HA-6A amp, these sound even better than the impressive NOS Miniwatts!”

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Posted 1 month ago

“Great tube!! Would buy again in a heartbeat!!”

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Posted 3 months ago

“I purchased both Brimar 12AU7 and the Mullard 12AU7 (NOS) to use in my PrimaLuna Prologue Premium pre amp. I’m using the Mullard in the primary position and the Brimar in the secondary. There was a noticeable difference in sound quality. It’s remarkable how much difference these tubes bring to the music presence.”

1 Helpful Report

Posted 4 months ago

“I'm no audiophile, but this tube really woke up my music. I have it in a Vincent PHO-701 phono stage, and it's amazing. The music just seems so realistic and vibrant. I can hear shimmer in the cymbal hits I've never heard before, and the kick drums have an added amount of detail that makes it almost seem like I'm in the studio during recording. Just outstanding sound!”

1 Helpful Report

Posted 5 months ago

“Placed into my BHK Per. Only @ 10 hrs on them. Immediately notice an improvement in soundstage width and depth. Mids and vocals clearer. Seem to be well worth the cost!”

2 Helpful Report

Posted 7 months ago