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Intermittent Anthem pickup distortion

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  • Intermittent Anthem pickup distortion

    Caleb,

    I had my anthem pickup system transferred from one guitar to another as discussed by us in previous forum post. My original purchase and transfer were both installed by an authorized installer. I 've return my guitar to the installer three times concerned about three issues. 1. after the transfer the pickup overall was less energetic as installed on the first guitar. 2. The pickup had uneven pressure on the UST pick-up and 3. there was some type of intermittent high energy distortion that would blur my amp speakers and headphones if I used percussive techniques. The distortion would last a little bit and then disappear indefinitely. I could not demonstrate the distortion nor recreate it for the shop.

    Issue 1 we discussed in a previous post back in November 2015 and I ended up purchasing a LR Baggs Acoustic Para DI to pre amp and EQ my guitar for electric use. Issue 2 was resolved after working with my install shop. Loose wires and connections were also corrected while the saddle was given its final adjustments (yes, the original transfer installation did not go so well). Issue 3 is not yet resolved. I just received my guitar back from the shop yesterday. The shop techs were very pleased that the saddle was level and the Anthems overall energy was high. It had a lot of string noise when trying it out at the shop so I figure the mic trim may have been adjusted too high for my taste. At home I immediately encountered the intermittent distortion when using light palm percussion. The distortion was loudest near the sound hold controller and less noticeable towards the lower bout of the guitar but still very much distorted.

    I set the Mic trim and balance to minimum levels and the distortion did not go away albeit now less loud. This time I could not only hear the distortion, but I could see my db input meter on my effects board spike to full red zone the slightest palm tap. Out of desperation I gave my sound hole controller a squeeze against my guitar sound board to make sure the unit was not coming loose and the distortion stopped. By all appearances and tests my Anthem is now functioning properly. I can strum, pick, and use percussive palm and finger strikes without spiking my input meters and they sound normal through headphones, speakers, and on recordings.

    Am I nuts or is something come loose inside my sound hole controlling unit or mic during the transfer of the anthem from one guitar to another? The batteries have been changed more than once and are currently producing 3 lights using the testing function on the anthem.

    Your input is respected and appreciated.

    Ed

  • #2
    Hey Ed,
    It sounds to me like one of a few things may be happening.

    The first observation is that I think that the preamp was rattling in the guitar, causing a distorted sound in the amplified signal, which I have seen happen before. When you pressed on the preamp something re-seated itself, eliminating the rattle.

    The rattle may have come from a light vibration between the guitar's soundhole brace and the top of the preamp, or it could have been something in the preamp itself.

    In any case, when you pressed on the preamp, the rattle went away. So it could resurface at some point, but there's a chance that it may not. If it comes up again, it may be necessary to add an additional layer of adhesive to the preamp in order to further separate it from the guitar top. If that happens, let me know and I can send you another set or two of preamp adhesives.

    If anything else, comes up let me know.

    Comment


    • #3
      Caleb,

      Thanks for the comments. Not sure If I would describe the distortion as a rattle, but it sounds like you are confirming that if the controller or a component inside is loose (rattling around) it could cause signal problems such as high energy output spikes that would distort the sound during certain movments such as using palm strikes.

      At the moment the anthem pick up system appears to be working as expected. If fact it is working quite nicely even with percussive techniques. If the meter peaking distortion comes back I will try to get a recording and video of the sound it is making to send your way.

      Until then.............. I will enjoy.

      Ed

      Comment


      • #4
        Offer of adhesive still on the table

        Caleb

        My anthem pickup controller is coming loose From my sound board. Is the offer of some adhesive still on the table or should I just take it back to the shop.

        Thanks

        Ed

        Comment


        • #5
          Originally posted by ejbsk8 View Post
          Caleb

          My anthem pickup controller is coming loose From my sound board. Is the offer of some adhesive still on the table or should I just take it back to the shop.

          Thanks

          Ed
          Hey Ed,
          If you want to send me an email at [email protected], I'll see what I can do to help you out.

          Comment


          • #6
            Intermittent distortion help

            Caleb,

            I want to publicly thank you and the team at LR Baggs for the extra effort taken to help resolve my issues with the Anthem pickup. Your team repaired the preamp and my local installer reconnencted wires that came loose inside the guitar after the installation.

            I cannot say enough good things about the service received.

            Thank you

            Ed

            Comment

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