I received the Psvane Horizon tubes today. At first, I thought the order was messed up as the boxes they came in are printed with Psvane Classic series tubes, not Horizon. When I opened the boxes, that is when I saw that the tubes had Horizon etched on the glass.
Also, the Psvane web store states within the Amazon portal that these are matched, but there are no measurements scribed on the boxes, nor any indication that these are matched tubes. These are sold as a pair and are advertised as matched. I just don’t see any measurements to validate that they are in fact matched. One other thing is I don’t know if these are tested for low noise like when I purchase from other sellers. My preamp is sensitive to mismatches and noisy tubes. It will be a leap of faith for me to try these tubes in my preamp.