You like great audio right? So what are you complaining about. Change them once a year. Ive tryed every NOS. worst is the russian. The BEST Amperex 6dj8. At least in my system. Telefunkin are out of this world also. Amperex are more balanced to my ears driving a zeus. I bought a 20$ pair of used amperex bugle boys blew everything else away. Quite strong great. Look up joes tube lore
