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Can I add a "Pre" Jack to a Sunn 1200S?

Discussion in 'Amps and Cabs [BG]' started by richspillberg, Mar 7, 2016.

  1. richspillberg


    May 31, 2011
    Hey Fellas: Curious if it would be possible to install a pre out into my Sunn 1200S (old version) head. I'm sure someone here could take a quick glance at the schematic below and give me a sure yay or nay. Regards.

    Attached Files:

  2. richspillberg


    May 31, 2011
  3. Yes it can be done, but by a good tube amp tech as it would need to be isolated from high voltage DC then it's level adjusted for normal line level.

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