Brimar CV4003 / 12AU7 Platinum Grade / Yes Cryo Reviews

5 Rating 50 Reviews

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Reed Rehorst

Verified Reviewer

“I'm enjoying the Brimars in my BHK Pre. Clearly a notch ahead of what I was using before. Thanks much.”

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Posted 3 years ago

“Great tube! Using the Brimar CV4003 in center positions and Gold Lion KT77 Power Tubes in Prima Luna Dialog Premium Monoblocks. The sound is very transparent, open and holographic. Very musical, dynamic with surprisingly good bass. The overall sound is clear and well balanced, the best sound ever in my system.”

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Posted 3 years ago

HAROLD METZGER

Verified Reviewer

“Brimar CV4003 / 12AU7 Platinum Grade / Yes Cryo Amazing tube! installed 2 of these in the front end on a PrimaLuna DiaLogue Premium HP Integrated AMP. It is a totally different sounding tube than the stock tubes that I thought was great sounding to start with and was not expecting really much of an improvement if any. Was I wrong! Holy Cow this is a bad ass sounding tube and in a great way! Without getting into all the audiophile lingo wording like bass slam, sound-stage, extended mid-rang, airiness,etc. Let me simplify! Simply wonderful to listen to!! It's like a whole new system when you just can't pull yourself away and stop listing. They smooth out every element without losing anything. Not rolled off but smoothed, polished, perfect! Some of my older albums for example Neil young, before changing the tubes after one side that was enough for it was close to becoming fatiguing but not anymore! A real game changer, an up-grade without breaking the bank. I can't remember the gentlemen's name that recommended them to me at UpScale Audio and I do apologize but I can say that everyone I've spoke with are dealt with at Upscale is most professional and usually spot on when it come to knowing their business!”

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Posted 3 years ago

David Marschall

Verified Reviewer

Author didn't leave any comments.

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Posted 3 years ago

Dean Dessouky

Verified Reviewer

“Great tube. Kevin's description is right on. A pair of these and a pair of the earlier Radiotechnique 12AU7s sound perfect on my Cary SLP-03.”

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Posted 3 years ago

Humberto Ramirez

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Author didn't leave any comments.

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Posted 3 years ago

“Very happy with these tubes. I put 2 in my Primaluna EVO 300 integrated amp and 1 in my Vincent 701 PHO phono pre. I could hear a difference immediately. Still only have about 20 hrs on them. Mids are great, bass nice heavy and tight. The best improvement I have found is in the treble. I have Focal Aria 948 which I love but occasionally found the treble a bit harsh for me. These tubes have totally corrected that!. Treble is beautifully clear without that occasional issue. I diffently recommend these tubes!”

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Posted 3 years ago

Gregory Brigman

Verified Reviewer

“Excellent purchase from an outstanding group of folks that know their products.”

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Posted 3 years ago