I have this idea that i'm working on that would require a battery powered amp + 2 basic speakers. I don't need super great sound quality, but i do need the components to be thin, and have the ability to be encased in resin (the speaker won't be encased, just the amp circuit)
Basically i'm looking to either buy or get:
1) a simple-ish circuit for [or a prebuilt] basic stereo amp that can be run off of 18 volts worth of battery power that will run the speakers discussed in #2 at decent volume for a ideally a couple of hours off 2600 mAh battery although i can beef up the battery capacity if i'm kidding myself here.
2) suggestions for two approximately 3" diameter speakers that are no thicker than 1" that will sound OK, but high-fi is not a real necessity. I'm thinking basic desktop computer speakers here.
The amp circuit will be encased in resin, and wires will run in and out for power and data, but there will be no connectors on the board itself. Both parts should be less that an inch thick. I'm hoping to spend <$75 for both but maybe that's unrealistic?
Thanks for your input!