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prosonic reverb hum mod/repair

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  • prosonic reverb hum mod/repair

    I have posted on a few different forums with hopes to get some help with this. I just had the fender Tech Note TN 97-1 reverb hum mod done on my prosonic and the hum is definitely better, but still there. As before the more reverb applied the more the hum. For anyone with this amp who has had the mod done or a newer version that did not have the problem, do you still have a little hum in the reverb? It is better than it was, but I was expecting it to take the hum away completely. If I set the reverb knob to zero I get no hum at all.
    Thanks for any responses.

  • #2
    Originally posted by conductor View Post
    I have posted on a few different forums with hopes to get some help with this. I just had the fender Tech Note TN 97-1 reverb hum mod done on my prosonic and the hum is definitely better, but still there. As before the more reverb applied the more the hum. For anyone with this amp who has had the mod done or a newer version that did not have the problem, do you still have a little hum in the reverb? It is better than it was, but I was expecting it to take the hum away completely. If I set the reverb knob to zero I get no hum at all.
    Thanks for any responses.
    I modded 2 or 3 prosonics acc.to Tech Note TN 97-1.There was less hum afterwards, but it never disappeared completely.
    Zouto

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    • #3
      Originally posted by Zouto View Post
      I modded 2 or 3 prosonics acc.to Tech Note TN 97-1.There was less hum afterwards, but it never disappeared completely.
      Zouto
      Zouto,
      Thanks for your reply. So I guess what I am hearing is the best this amp will get. I have noticed that plugging in the channel/reverb footswitch actually knocks the hum the down a little more. I know this is subjective, but the hum you heard after completing the mod, was it average when comparing to other amps? I have a peavey tube amp that does have a little hum that gets louder as the reverb is turned up, but not nearly as loud as the prosonic. I have also noticed that the reverb does not seem as wet as it it did before the mod, did you notice this too? Well, I guess now I need to decide if I can live with the hum. I was expecting for the hum to be completely gone after the mod. I play the amp mostly at low volumes now, which is where you hear the hum the most.
      Thanks again.
      Last edited by conductor; 12-11-2008, 06:47 PM.

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