I have a 3D printer. Well, actually 3, but who is counting? The other night I saw a new project upload on Thingiverse for a Back Load Horn Speaker. It was so cool and I knew I had to try it. And besides, I had an actual need as I had just purchased a Uniden SDS200 Police Scanner and it had a little internal speaker that was mounted on the bottom of the case. It screamed for a powered, external speaker. Win, win.
The first thing I’d like to say about the project is I didn’t quite need all the bells and whistles the designer did. He set his up as bluetooth speakers and that is darn cool, no doubt. I just didn’t need to do that. I just needed a powered external speaker.
The back panel is designed for a stereo amp board which the developer lists a source in China that costs a few bucks. The exact same board can be had on Amazon for about $14. Getting 2 day delivery is worth it to me. The parts from China probably wouldn’t show for weeks.
Anyway before you build and wire these you kind of need to know how you are going to deploy them. Let me elaborate.