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  • Footnote Guitar Amp

  • DrDan

    Member
    December 25, 2021 at 4:33 am

    Parts Express has the 5W Footnote amp for sale right now for $9, and I wanted to show a way that I was able to use it to turn a broken stage monitor into a guitar amp.

    The stage monitor had a blown tweeter; so, I removed it along with the crossover. I installed the Footnote amp into the empty space by building a small box for it.

    To finish the look, I cut down the speaker grill and made a trim plate that I painted black to match. I also attached rubber feet so that it could stand up if desired. 

     

     

  • 123Toid

    Administrator
    December 29, 2021 at 6:48 am

    @drdan Isn’t that footnote so awesome!  I love it!  What a great way to repurpose that monitor!  Did you upgrade yours to 12v? One thing to think about as well, is none of the ports are sealed on the footnote, so it might be best to seal the space it is in.  That way, the bass won’t push the air out the holes. 

  • DrDan

    Member
    December 29, 2021 at 5:37 pm

    @123toid

    I had a buck converter laying around and did the 12V mod during set up – picture. However, the 12V (negative center) power supply I had to use was not very clean and I ended up with some hissing during the testing.

    In the end, I used a very clean 1A 9.6V foot pedal power supply (the amp seems to be designed with this type of PS in mind) that had no noise even turned up to 10. So, I went with lower noise floor rather than a higher top volume.

    The bottom row of plugs on my Footnote were boxed, and I am not getting any air coming through. My one “complaint” is that the circuit boards are so close to the edge that you have to be careful to seal along the side.

     

  • 123Toid

    Administrator
    December 30, 2021 at 7:58 am

    @drdan 

    That is great to hear!  I completely agree about the circuit boards being close to the edge.  I didn’t have as big of an issue, due to the CNC, but it was something that did really concern me even when programming it. It reminds me a lot of the hifi tweeters, like Punktkilde, that stick their leads so close to the edge, it makes it very hard to use properly. 

  • 123Toid

    Administrator
    January 26, 2022 at 1:45 am

    @DRDan I’m in the process of moving threads around and I just wanted to say, I love this project.

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