Intro: Mobile Bluetooth Speaker
Self build Bluetooth speaker with great bass through passive radiators. Also very loud without any distortion. Battery life of 12h + on medium volume. 3 hidden buttons on the top of the speaker. Made out of 11 layers of plywood which are glued togehter.
Parts I used:
Speakers: Faital Pro 3FE25
Passive radiators: https://www.etsy.com/listing/250146898/70mm-samsun...
Amplifier: TSA2110A from TinySine http://www.tinyosshop.com/index.php?route=product/...
2200 mAh Li-ion Akku 12v