how to make a Helmet Mounted voice amplifier?

i'm going to make a cosplay where the voice on the helmet will be amplified or just conected to a speaker, cos is hard to project your voice from a closed helmet, and... why not (since it dont burn the helmet), i was thinking on LM386 but the heat will burn me and the helmet material

Re-design7 years ago
Mount the amp on the outside of the helmet and use a heat sink.  You can cover the amp or put it inside a, what else but a mint tin.  the tin could even act as the heat sink thereby saving your scalp and helmet.