I need a powerful portable amp for a project. In the project, they used a LM386 amp and here are the specs: http://en.wikipedia.org/wiki/LM386 Running this amp with 2x9Volts produces 700-1000mW and is barely enough for my needs.   I was looking at the EiiO E11 but output power is > 180...

I'm looking for a way build a hidden ear bud. I want a portable Amp that will be strong enough to let me hear sound enough to distinguish words. No high quality music or anything like that.   I don't want to blow a ton of money on something that might not work well, but I also don't want to...