SOLD
I have an extra set of the KR PX 4's that I bought new for my Supratek Cabernet. I have moved on to a Audio Research Anniversary 40 preamp and only used these tubes for a couple hours to make sure they worked properly. I wanted to hold onto these because they are , by far, the best PX4 I have ever heard and not by a small margin. The thicker glass really helps with the microphonics over other PX4's. My feedback on Audiogon is under hi5harry and is perfect. Maybe someone should make me an offer I can't refuse. Someone should be using these fine tubes! Send me a PM if interested. They would come with the original box, graphs, printouts, just as new.
