My experience is that my Raysonic 168 differs tremendously with each tube type. In my system the EH 6922 and the Jan Phillips 6922 both sound thin and veiled( a lot of background "noise"). When I insert 6922 White PQ'S the sound not only becomes fuller, richer there is also definition to the background, all the "noise" becomes instruments or voices or feet moving! I don't think you've heard what the Ray can do if you haven't heard it with NOS tubes( I'm assuming the 128 is similar. I've tried Seimans 6DJ8, Mullard 6DJ8, Jan 7308 White,Bugle Boy 6DJ8,Orange Globe 6DJ8, Orange "A" frames 6DJ8 Holland & Gt, Brittian,Orange PQ 6922 and my favorite the 6922 White PQ pinched waist. I read reviews with the stock and laugh because the tubes inhibit the sound so much that their listening to a different 168 than I listen to. Taking Newbee's lead I just bought a CD-3 MK2 so now I have two choices in sound.
