Tag Archives: 12AU7

“I would have never thought possible”

Received from customer Lance L. via email:

“Hello Rachel: Just a line to let you know the 12AU7’S arrived on schedule. I have installed them and have only had a couple of hours of listening, but even in this short period of time I am starting to hear rather amazing sonic characteristics. The combination of the PSVANNE KT88’S and the 12AU7’S are creating a completely different sonic aura. I can already hear significant changes to my entire audible reproduction, that I would have never thought possible, especially in comparison to the GENALEX, TUNGSRAM; RCA NOS BLACK PLATES, and SHUGUANG tubes I have used previously. I am further impressed that the price point of the PSVANNE tubes is not “over the top” in comparison to many inferior tubes. I don’t know what the manufacturer is doing to achieve such incredible reproduction characteristics from their tubes, but it is definitely working.”

Posted in 12AU7-T/TII, KT88-Z / KT88-T/TII, Review & Feedback | Tagged , | Leave a comment

Psvane’s bring a whole new “sophistication”

I am reclining in my listening room thoroughly enjoying The Rite of Spring due in no small measure to the Psvane 12AU7 Reference Vacuum tubes. I just recently purchased these new production tubes manufactured under tight tolerances in the Shuguang tube facility in China. The Psvanes replaced gold pin EH 12AU7s. The EHs were good sounding tubes in my heavily modified cj tube line stage. The Psvane’s bring a whole new “sophistication” to all aspects of sound. Most notable is a complete lack of “glassiness” in the upper midrange and treble, a smoothness to the musical texture without any loss in detail. The soundstage is open and natural. Bass is powerful and tight. These tubes are very quiet, a characteristic missing in my trials with NOS Mullards. Yes, they were warm and “musical” but the several pairs I used were always noisy…losing their vacuum?


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