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M3 Output Questions

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  • M3 Output Questions

    Hi! I’m new to the forum. I used the search function, but couldn’t find the answers I need. I appreciate everyone’s help!

    I’ve got an M3 that was chopped by the previous owner. Knowing what I know now, I would have sprung for an unchopped one, but live and learn.

    It has a 1/4 inch output, which I have used extensively for gigging, but I noticed it sounded muddy and distorted and nothing like the XK-1 I had been using in the past. My ear eventually got used to it and I just figured that was the difference between a real tonewheel organ versus a digital facsimile.

    I had it open recently to repair some key contacts, and happened to notice the ‘phono’ RCA jack in the amp. I understand that this was to allow you to play your record player through the organ’s internal speaker to play along with your favorite records. I got curious and plugged it into a guitar amp (my Leslie is undergoing extensive mods) and man, what a difference. I actually have key click I never had before, and overall it is brighter and more full range and more Hammond-y, although quieter.

    The 1/4 muddy jack is a lot hotter of a signal, which my Leslie needs, but it’s just too muddy and dark. The RCA just sounds miles better, even though I have to crank the amp a little more to get as loud.

    Is it safe to use this RCA jack into a mic preamp for a boost into the Leslie, rather than using the 1/4 out? Are there any mods I need to do to this RCA jack to make it safer if it is, in fact unsafe?

    Thanks a lot, everyone!

    I’m glad to be here on this cool forum.

  • #2
    Also, if anyone knows what the little trimpot on the expression doghouse does, I’m all ears. Thanks!

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    • #3
      Originally posted by SpaceOrgan View Post
      Also, if anyone knows what the little trimpot on the expression doghouse does, I’m all ears. Thanks!
      Great question. This is the info you are looking for. You will love the answer:
      http://www.dairiki.org/HammondWiki/H...eampDriveLevel
      Last edited by Juan; 08-28-2018, 09:34 PM. Reason: more info
      Hammond A-102
      Hammond M3 - project
      Hammond PR-40 tone cabinet
      Leslie 145
      One Leslie 60 and one 70 for use with Rhodes and Wurlitzer piano

      Comment


      • #4
        Originally posted by Juan View Post
        Great question. This is the info you are looking for. You will love the answer:
        http://www.dairiki.org/HammondWiki/H...eampDriveLevel
        Thanks a lot, Juan! That will come to use for me very soon.

        Comment

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