Not at that price! Hey, cryoed tubes do sound better. I had mine done by a guy who does it for many manufacturers and probably many of the people selling on audiogon. Go to www.cryogenicsinternational.com in Scottsdale and talk to Charles. If you want to try it, it won't cost you $500 for all of your tubes to be done. It is around $9/lb with a $75 minimum charge. How much do tubes weigh? Tell these guys selling for $500 to get real!