Radiotechnique 12AU7 Platinum Grade / No Cryo Reviews

4.9 Rating 52 Reviews

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joel.m@upscaleaudio.com

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Robert H. Levi

Unverified Reviewer

“I am gob smacked by this perfect 12AX7 tube. As the key tube in my EAR 834L line stage it clearly communicates musical versamilitude! Best 12AX7 I''ve ever used, clean and clear from 20-20k hertz. Marvelous and worth its weight in gold coin.”

Helpful Report

Posted 14 years ago

“I am totally pleased with this 12AX7, I have it in a Zman Audio Signal Enhancer, and this is an UPGRADE! Thanks, Kevin for all your help and fine products! Your info, on the tubes and testing, was very helpful. Keep up the good work!!”

Helpful Report

Posted 14 years ago

“Greetings Kevin, One of your staff recommended this tube (1956 Radiotechnicque 12AU7) for my 303-300 after discussing my system with me...and it''s an unbelievable home run. The upper register clarity and "liveness" of this tube coupled with great bass and very low microphony make it an amazing listen. Huge improvement over the stock EH''s in the Cary. Huge!!! Highly recommended. Thanks!”

Helpful Report

Posted 14 years ago

PeterG Australia

Unverified Reviewer

“Ive tried 6 other tubes for my PrimaLuna Dialogue 3 preamp and when I put these in I knew id hit paydirt ! It combines detail, clarity, top end extension, solid base, 3D midrange and a balanced overall tonal quality .. its all there ... nothings missing .. IMHO and in my setup of course. Its not a warm tube like the Mullard .. id describe it as accurate. I have solid state monoblock power amps and this tube preserves the slam and transient response that I love .. but adds the soul that solid state cant capture. Jaw dropping stuff .. Enjoy”

Helpful Report

Posted 14 years ago