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

4.9 Rating 40 Reviews

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2058 Wright Avenue
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“High quality tubes per usual from Upscale. The only place I buy tubes from!”

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Posted 4 years ago

Charles Fisher

Verified Reviewer

“Amazing sound, even before fully broken in... Exactly as described.”

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Posted 4 years ago

“Got matched pairs of Brimar, Radiotechnique and new production Gold Lions for do some rolling in the PS Audio BHK pre. One of the Brimar tubes arrived cracked but was promptly replaced by John at Team Upscale. Their support staff is excellent and respond very quickly to emails. I will have to report later how it goes.”

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Posted 4 years ago

Dagoberto Gonzalez

Verified Reviewer

“Very Good Service. Thank You”

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Posted 4 years ago

“The less than $200 cost of installing two Brimar 12AU7 tubes in my Rogue Audio RP-5 preamp has resulted in what sounds like a $2,000+ system upgrade. These “Brimar beauties” are better balanced and provide improved music detail than the very acceptable included tubes. My modest Revel f206 speakers now deliver more bass and lower mid-range response than I had thought possible. Overall, my system has an enhanced sonic quality that has made the Brimar 12AU7 tubes a great choice. It’s also important to note that Tamara and John set the standard for great customer service by expeditiously resolving an order processing snag.”

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Posted 4 years ago

“My first experience with tube rolling. Bought a pair of these for my PrimaLuna Dialog Premium HP Integrated and replaced the stock gain tubes (front 2). Wasn't sure what to expect, and was pleasantly surprised with what I heard. It's not that it sounded so much 'different', it's like there was more of what I already loved about the HP. Maybe a slightly enhanced midrange, maybe a slightly smoother top end - it's hard to describe but very enjoyable to listen to. I loved my PrimaLuna with the stock tubes, but after hearing the Brimars, I'm not going back.”

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Posted 4 years ago

“Rogue ST-100 My system was sounding a little clinical and I needed a 12au7 to help smooth off the sound a little and create a more realistic, deep and engaging sound stage. These did the trick. Shipment came on time, great condition, etc. Thanks”

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Posted 4 years ago

“I installed two on my PrimaLuna Dialog Premium HP integrated. Wow! Much more musical. Very fast delivery.”

1 Helpful Report

Posted 4 years ago