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Brimar CV4003 / 12AU7 Platinum Grade / No Cryo Reviews

4.9 Rating 153 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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Posted 4 years ago
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1 Helpful Report
Posted 4 years ago
Ashton Burch
Verified Reviewer
Pricey for small preamp tubes but audiophiles spend 5-10 times as much on cables and probably gain less performance than these tubes provide
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Posted 4 years ago
First of all I would like to thank Upscale for consistently providing top quality tubes. These Brimar 12AU7 tubes have a delicate air to them. They are one of my favorite input tubes for my amp.
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Posted 4 years ago
Gregory Brigman
Verified Reviewer
Author didn't leave any comments.
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Posted 4 years ago
Anthony Lombardo
Verified Reviewer
Excellent Tube... Wonderful in my Evo 300
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Posted 4 years ago
Joseph Archila
Unverified Reviewer
Yeah it’s like I upgraded my whole system really amazing every single thing got better from top to bottom - front to back and detail beyond - by a lot - more refined deeper bass - warm and luscious tones all around that seem have more hang time and texture than before with the stock Psvane. I used these in the PS Audio M1200 input stage. Didn’t lose any slam or dynamics they may have improved slightly. Fun Times!
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Posted 4 years ago
I can feed the immediate change on high end and mid tones when I replace the stock tube. I also tried Psvane 12AU7-T Mark Ⅱ which is way too bright for my taste. Brimar just has the right balance between airy highs and punchy bass. It refines the edge of highs and everything sounds smooth and pleasant. I never felt listening fatigue and this is so amazing. Anyone interested to the sound in my system please take a look of my channel https://youtu.be/nwWlSdSPVG4. It's only been played for around 7 hours and not burned in yet, while already sounds phenomenal.
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Posted 4 years ago