pacman ghost usb stereo speaker as a demo to show 3D modelling design and prototyping to students. The components used are
-- 2 x 40mm 3W speakers such as http://goo.gl/0C5fYP
-- USB Audio Dongle, this one http://goo.gl/0mIdO9
-- Micro audio amplifier, get it here http://goo.gl/5EiPAM
-- 3.5mm headphone jack
-- dupoint wires
The power for micro audio amplifier is from the USB connector of audio dongle.
demo video - https://youtu.be/c8DVrmIt3Hg
Hope you enjoy the making!
da vinci 1.0 using opensource firmware
Requiring M2x4 screws to combine all parts