Let’s get something straight ideal up front: this isn’t much of an electronics project. however it is a very creative 3D printing job that contains some electronics. [Sjowett] used an off-the-shelf class D amplifier with BlueTooth input to produce a basic BlueTooth speaker with a subwoofer. As you can see from the pictures, woofer is precisely the term to use, too.
The clever mechanical style uses 3D printing as well as typical metric PVC pipe. That’s a excellent technique as well as resulted in a very clean as well as professional-looking build. If you don’t have simple gain access to to metric pipe, you might print the pipes, however it will take longer as well as may not look rather as good.
In addition to the clever style as well as the PVC construction, [sjowett] likewise evaluated a great deal of inexpensive amplifiers as well as has recommendations on which one to get. In particular, he says that lots of of the boards he tried didn’t isolate the BlueTooth input from the audio output well sufficient as well as there was a noticeable whine into the output audio.
We’ve seen lots of other speaker projects, however this one has a great “awwww” factor. We’d love to see Homan (the speaker/puppy’s name) sport some sound-reactive lighting, however perhaps that’s a future enhancement.