You will have to have the tubes tested to see how they are but tube sound degradation happens over a period of time slow loss until the tubes fail so you do not really notice until you have to fix the tubes because of noise issues or replacement because of total failure.
How far over the limit can I go
I am currently just past the recommended 2000 tube life on my power amp. (Audio Research Ref 110). It still sounds glorious. Am I playing with fire here? Or, will I notice some degradation in sound that will prompt the re-tube. I think it's about $1,000 to retube.
Thanks guys!!!
Thanks guys!!!