How often do you send your tube pream/amp to the manufacturer for service and calibration?

Assuming everything sounds fine. Or you don't do it if everything seems fine ?

inna03-01-2025 9:31pm

facten Details Discussions Posts This discussion Message User 2,891 posts 03-01-2025 at 09:41pm Copy Comment URL Report Comment Edit Delete Never have send back for any reason the Line Magnetic, Finale Audio or Ayon Ayon Audio tube integrated amps, nor the Modwright tube preamp I have . Once I sent back the Modwright DAC i have due to a problem with a soldered point. Otherwise they all sound fine and unless there's an issue I have no interest in risking shipping equipment out west or up to Canada.
immatthewj Details Discussions Posts This discussion Message User 2,495 posts 03-01-2025 at 09:52pm Copy Comment URL Report Comment Edit Delete Never.
carlsbad2 Details Discussions Posts This discussion Message User 1,958 posts 03-01-2025 at 10:26pm Copy Comment URL Report Comment Edit Delete Never. And if there is a problem, the OEM is my last choice. I have very few problems, but most I fix myself. I got confused about the interchangeability between an EL84 and a russian tube and I blew a resistor in an amp. fixed it myself in 15 minutes. Jerry