Mullard CV4024 / 12AT7 Platinum Grade / No Cryo Reviews

4.8 Rating 50 Reviews

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Phone:

909.931.9686

Email:

joel.m@upscaleaudio.com

Location:

2058 Wright Avenue,
2058 Wright Avenue
California
91750

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“Uncle Kev, first I would like to say all the tubes I have bought from Upscale Audio are great! They are well packed and reasonably priced due to all the testing you do for the customer. This tube is worth having 3 or more. For my system they sound very very nice and very well balanced. Keep it up and thank you. DG”

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Posted 2 years ago

John Denning

Verified Reviewer

“I like these.. Tubes are very fast, and allow me to hear more detail.. IE: The octive string, and the base string on a mandolin, as well as a nuanced sense of wood and varnish. I purchased a second set as a back-up... JD”

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Posted 2 years ago

“Prefer it over the 12AU7”

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Posted 2 years ago

Brandon Holguin

Verified Reviewer

“Great preamp tube that I used to swap out the 12AX7 in the V1 spot in my 15-watt guitar tube amp. I received the tube quickly and very well packaged. I would highly recommend Upscale Audio for all your tube requirements.”

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Posted 2 years ago

“Amazing. Way better than stock tubes in the McIntosh MHA200. Great service! Got them in 2 days! I will definitely buy here again.”

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Posted 3 years ago

Michael Brownlee

Verified Reviewer

“1 tube noisy within 20 hours of use. Attempted to contact CS for a return label but never heard back. 3 stars for the 1 tube and quick delivery. My run of good luck with tubes has run out it seems. Perhaps you will have better luck than I have.”