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

4.9 Rating 44 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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“Thank you Upscale & Kevin that made this Brimar tubes available again..The tube gods really bless us..:) Unexpected amazing results when I installed these 12AU7 Brimar tubes replacing my Rouge CM3 preamp tubes in the center row position on all three of them.. Previously one of 12AU7 tube in the center position was my older Brimar and to its left and right were Gold Lions while leaving the two 12AX7 JJ stock tubes in front row...and it was all good already..until I replaced all the three 12AU7 tubes with the Brimars. The sound transforms into a richer and more holographic 3D with huge soundstage. It was like injecting a steroid. Bass feels more powerful and deeper with grunt at lower frequencies..It is like having a completely different amplifier. Most of my cd collections and downloaded itunes came alive with unbelievable realism and detailed without harshness with good recordings. Notes and instruments sustained more. They presented a sense of 3 dimensional space, air and nuance as well as refine micro detail highs. Believable liquid mids and vocal as if the singer is in the room.. Highly recommended.”

3 Helpful Report

Posted 1 year ago

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Posted 1 year ago

“Amazing tubes. I have them in my Rogue Sphinx, making the amplifier sound holographic at times. Definitely worth the $$$.”

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Posted 1 year ago

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Posted 1 year ago

Robert Gallos

Verified Reviewer

“Used in Primaluna Evo 400 preamp in 2 front positions. Lush, textured and holographic without giving up detail, dynamics or bass. They do everything you hope a great tube would do. Love these tubes!”