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Radiotechnique 12AU7 / 6189 Platinum Grade / No Cryo Reviews

4.8 Rating 37 Reviews
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Michael Randle
Verified Reviewer
Author didn't leave any comments.
Helpful Report
Posted 4 years ago
HAROLD GROVES
Verified Reviewer
Very happy my listening pleasure has increased will only get better with time.
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Posted 4 years ago
Product was defective and I was refused an RMA. $200 wasted on defective tubes. Worst experience with an online audio dealer ever. I won’t be doing business with Upscale Audio again and have informed my audiophile friends of my experience.
5 Helpful Report
Posted 4 years ago
I bought a pair of these a year ago for my Primaluna 200 and tried them once. I thought they were too bright and that the bass suffered. Then I decided to give them another shot recently and let them burn in more and - holy smokes! I was too impatient the first time. These are transformative tubes. They illuminate the soundstage like you've turned on the lights and bring out enormous amounts of lush detail on top. The bass is on another level, fully extended and crisp and alive. Wonderful, revelatory tubes. Highly recommended.
2 Helpful Report
Posted 4 years ago
Anthony Lombardo
Verified Reviewer
Author didn't leave any comments.
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Posted 4 years ago
Francois Cossette
Verified Reviewer
Great sounding tubes. Quick delivery and good advice from Upscale staff !!
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Posted 4 years ago
Currently in the pre-amp section of my Rogue Audio Cronus Magnum 2. A gorgeous tube. Lives up to the hype of prior reviews posted here.
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Posted 4 years ago
This is what I would characterize as being a poised and composed tube. For my Cornwall 4 speakers with their at times slightly over assertive horns the 6189’s calm them down without tamping them down. This tube also loves string instruments whether acoustic or electronically amplified, and it also takes the edge off of certain female vocalists such Gillian Welch whose album “Harrow and Harvest” Is one of my reference albums of music for running any new tube through its paces. All in all, I can heartily recommend the 6189 as a great all-rounder. I bought these platinum matched, and they do sound very well matched indeed.
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Posted 4 years ago