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Brimar CV4003 / 12AU7 Platinum Grade / Yes Cryo Reviews

5 Rating 59 Reviews
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Shawn Coates
Verified Reviewer
Incentivized
I went from some older RCA tubes back to the Prima Luna tubes. That improved the sound of my EVO 400 a lot. Old untested tubes don't sound all that great. These Brimars changed the sound completely after a few days break in. Better bass and a better soundstage. I also went back to EL34's in my Dialog Premium amp. Glorious midrange again. I may get 2 more Brimars for the amp too.
Helpful Report
Posted 2 months ago
John Fricano
Verified Reviewer
These tubes are being used in a PS Audio BHK Preamp and they sound great and relaxed. They are also dead silent through my system. Certainly not inexpensive but worth it!
1 Helpful Report
Posted 1 year ago
Brian Hoffman
Verified Reviewer
Placed two of these in the driver positions of my EVO 400 integrated with OEM tubes and quickly noticed an improvement. Especially smooth and clear midrange. New to tubes and was not sure what to expect - certainly a cost effective upgrade.
1 Helpful Report
Posted 1 year ago
The sound I've been looking for. Not sure how tubes do their thing, but this tube is a leap above anything else I've tried. NS Telefunken, Mullard, JJ and NOS Mazda. Just great dynamics and insight to details. No regrets due to price. It's like adding or upgraded a component. Rogue Perseus Magnum.
1 Helpful Report
Posted 1 year ago
Mario St-Laurent
Verified Reviewer
Author didn't leave any comments.
1 Helpful Report
Posted 1 year ago
John Plascak
Verified Reviewer
I keep a small stash of these great tubes on hand before they sell out.
1 Helpful Report
Posted 1 year ago
Tony Leopold
Verified Reviewer
Back up pair. Triode balance on one tube was 8.8 and 11.4 which I’m not thrilled about. Sounds fine though and I guess that’s what matters.
1 Helpful Report
Posted 1 year ago
These sound super rich with tight bass and smooth highs. I’m still breaking them in, but I noticed a difference right away. Great tubes
2 Helpful Report
Posted 1 year ago