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Brimar CV4003 / 12AU7 Platinum Grade / No Cryo Reviews

4.9 Rating 147 Reviews
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joel.m@upscaleaudio.com

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Gregory Tarsy
Verified Reviewer
Author didn't leave any comments.
1 Helpful Report
Posted 4 years ago
OK. There IS such a thing as “instant gratification”. I rolled in the Brimar CV 4003s in the 12AU7 sockets of my Yaqin M13S, replacing the new reissue Mullards. Left the new reissue Mullard 12AX7 and the EH6CA7s in. Let it warm up about an hour. Popped in a Tommy Flanagan CD known for some harsh upper mid transients, particularly in the acoustic piano, and some weak acoustic bass. Wouldn’t ya know it....the harshness in the upper mids and low highs smoothed out, and the bass really presented itself. Not perfect, but these tubes have only been in my amp for a short time. Showing some real promise here. Left the amp on to let the tubes cook a little more, and went on a piano tuning job. Just popped in k.d.lang “Ingenue”, a disc that I would always bring to the audio store back in the day to audition components. The amp has been running around four hours and I gotta say....it sounds like a different system. Smooth and listenable even a higher volumes. A very nice improvement. And on Clark Terry “Portraits” CD, the already wide soundstage expanded even further. And...it should sound even better after these Brimars burn in. Wowee. I’m happy with my choice. And the reviews here helped a lot and justified my move. Fantastic!
Helpful Report
Posted 4 years ago
George Biswas
Unverified Reviewer
My god, these tubes sound so good. I am using it in the preamp position of my rogue CM2 amp. Pleasant, gorgeous, soothing are the words that come to mind to describe the music produced by these tubes. The vocal is the best! Plenty of solid low end and zero harshnesses in the highs. It is the kind of tube you would like to listen to coming back from work on a Friday with a glass of whisky ......
2 Helpful Report
Posted 4 years ago
Excellent product. Balanced top to bottom. Give me the tube sound without sacrificing dynamics or detail. I use them in Cary audio SLP-03 pream. I tried the Mullard, it was a bit dark, bass transitions were not as clear, yet the midrange is the Mullard is great. This one is a no brainer. Of note this was my second set as backup in case upscale runs out. This is how much I liked them. System: McIntosh Mc-402 in monoparallel mono block setup, eggleston works Andra original speaker, cardas / synergistic research/ transparent cable. Front end : laptop to marantz sa8005 SACD/Dac running Tidal, and mmf-2 turntable. Of note I use these tubes on my Vincent tube phono pream, the don’t disappoint.
Helpful Report
Posted 4 years ago
Rich Vitovitz
Verified Reviewer
Awesome sounding tubes
Helpful Report
Posted 4 years ago
Next best tube compared to new old stock Mullards at almost half the cost. Great tubes.
Helpful Report
Posted 4 years ago
Author didn't leave any comments.
Helpful Report
Posted 4 years ago
Clearer definition. Fuller sound.
Helpful Report
Posted 4 years ago