Recent content by Rob_77

  1. Rob_77

    Ampeg PF50T problem after turn on

    when i turn off the amp, i do it as the manual Eq and bass are removed before switching off Which 6L6 would you recommend?
  2. Rob_77

    Ampeg PF50T problem after turn on

    the sound is not hum but it’s double knock knock after power up ,just 1 second after the light turns blue
  3. Rob_77

    Ampeg PF50T problem after turn on

    This “problem” is the same with Markbass 104 This is link on YouTube to watching my amp https://youtube.com/shorts/UrM9GAkTM_w?feature=share
  4. Rob_77

    Ampeg PF50T problem after turn on

    Exactly! I didnt know the technica name
  5. Rob_77

    Ampeg PF50T problem after turn on

    Hello! I’m new follower in this forum,and i have a doubt to my new amp Early novembre i purchased a new ampeg pf50t and pf115he(used) ,after tubes warm up ,turn on and coming out from the cab,two blasts Is it normal o is it a problem?
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