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tube vibration damage?

Discussion in 'Amps and Cabs [BG]' started by terraplane, Jan 31, 2003.

  1. terraplane


    Oct 14, 2002
    Italy, Palermo
    Hi, I'm going to buy a svt-2pro ampeg, a ALL TUBE 300w head. Someone tell me that the power tube, can be damaged by the cab vibration of the low frequencies...I'ts true? Another thing about tube... Another person, tell me that the low frequency of a bass, is a hard work for tubes, so if i play hard, or every day, my tube will live only 7 or 8 months... six 65500 tubes are a lot of moneY!!! someone know if it's all real, or if it is a lie?
    thank you,
  2. It's a good idea to put some sort of foam or other form of shock isolation between the head and cabinet because the viabration can makes the tubes become microphonic. As for low frequencies damaging tubes, that's complete crap. Expect at least five to ten years of steady use on even CRAPPY tubes. Good ones can go for over 30 years.

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