"5.0 out of 5 stars -
A surprisingly huge step up from Sylvania and other NOS tubes
Reviewed in the United States on May 19, 2020
Verified Purchase
Came in a beautiful presentation box with papers showing serial #s and measurements. Used them to roll from Sylvania NOS. 6189/12AU7. I was amazed at how much stronger these PS VANES were over the Sylvania NOS.
Truly impressive!
Update: I also have some RCA NOS, Mullard re-issues, and a few other matched NOS tubes of varying brands.
These PS VANE T2 tubes clearly outperformed them all in my XDUOO TA20 hybrid headphone amp.
I liked them so much that I ordered a 2nd pair, along with matching PS VANE T2 power tubes of another designation, to go into a Cayin HA1A MK2 headphone amp I recently ordered elsewhere.
The difference between this PS VANE T2 and others is immediately a huge noticeable improvement. The others I could tell differences, some more subtle than others. If you blind folded me and asked me to identify 1 of the other brands over the others, i might guess correctly half the time. Then there's these. They're unmistakable.
Its like going from a home theater in a box with a 50" 720 p monitor with Dolby Digital 5.1 (not bad) to a 140 inch UHD projector and a 7.2.4 Dolby Atmos system( WOW). There's no going back.
They probably would be wasted on a guitar amp where distortion might be preferable, but for hi fidelity music reproduction, these are really hard to beat."