Brimar CV4003 / 12AU7 Special CJ Test Grade / Yes Cryo Reviews

4.8 Rating 46 Reviews

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909.931.9686

Email:

joel.m@upscaleaudio.com

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2058 Wright Avenue
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“I upgraded the stock JJ’s 12au7 tubes with these in my Rogue Audio Sphinx V3. They made a huge difference. Much cleaner sounding and warm now.”

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Posted 4 years ago

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Posted 5 years ago

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Posted 5 years ago

“Great sounding tube”

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Posted 5 years ago

“Great tubes. Slight higher, but barely audible, hiss than brand new tubes. Highs are airy, vocals natural and bass is full yet tight.”

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Posted 5 years ago

“Still breaking the tubes in but sound very good.”

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Posted 5 years ago

“I noticed a difference right from the start. I'm looking forward to getting a few more hours on them and enjoying as I'm doing it.”

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Posted 5 years ago

“I used these tubes in my Rogue Audio Pharaoh and the improvement was even better than I expected. The midrange is smoother, a very noticeable increase in resolution and the soundstage expanded. Very happy with these tubes!”

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Posted 5 years ago