I did receive an extra set of 572's when I received the amps.
Dennis Had also mentioned around 9 months would be the anticipated life span of the tubes. He also suggested sending in the amps to be upgraded to a different tube for a $1000. I thought I would wait until these went and then I would sell the amps(with the spare set of tubes)and then upgrade to one of the newer models.
If I did want to buy extra tubes, any Idea what they cost?
Dennis Had also mentioned around 9 months would be the anticipated life span of the tubes. He also suggested sending in the amps to be upgraded to a different tube for a $1000. I thought I would wait until these went and then I would sell the amps(with the spare set of tubes)and then upgrade to one of the newer models.
If I did want to buy extra tubes, any Idea what they cost?