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Martin Thinline Active Jack  

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      Easily electrify your acoustic guitar.

      The Martin Thinline Active Jack is a miniature onboard preamp built into an oversize acoustic guitar endpin. The Active Jack will give active performance to your existing Thinline 332 pickup -- or any piezo or magnetic pickup -- without additional modification. State-of-the-art circuitry is housed in the jack's shielding cap. The Thinline Active jack will give you more than 12,000 hours of life from one 9V battery.

      Order yours today!

      Customer Reviews

      Review Snapshot®

      by PowerReviews
      MartinThinline Active Jack

      (based on 2 reviews)

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      Reviewed by 2 customers

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      Exceeded All Expectations

      By Judgestone

      from Picayune, MS

      About Me Experienced


      • Functional
      • Improves Sound


        Best Uses

        • Backup
        • Concerts
        • Practicing

        Comments about Martin Thinline Active Jack:

        My brother-in-law bought me the Martin ThinLine Acoustic Pickup for Christmas last year to use in an Epiphone EJ-200 to replace a sound hole pickup I had installed. I had the ThinLine professionally installed and it did work but being a passive pickup I just couldn't get the loudness I was looking for even running it into a DI box with EQ settings and boost levels. I got the Active Jack and had it put in with the ThinLine and now it sounds amazing. I am very impressed with the overall sound and ease of installation.

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        (1 of 1 customers found this review helpful)


        Does the Job and Cheap

        By Revival Praise Band

        from Buena Vista, CO

        Comments about Martin Thinline Active Jack:

        I am using a fishman neo humbucker with this fishman made preamp. It add's some bass to the input into the amp which is needed for most passive mag pickups. Output is low, as there is only 3 db of gain, but so is the active humbucker. For the money it works for me, and yes I'd recommend it. Install is a cake walk ( I do know how to solder though). This preamp is very low noise. There you have it. Keith

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