Most of these seem to be in the music performance or video production market segments so it's a bit harder to find the info. Any consumer level(under 100 dollar) products that can be recommended? Right now this is the best one as far as fidelity I've found, and receiver gain. But the...

I opened and looked at the control board, and found the amplifier chip that is connected to the input 3.5mm jack. This eventually leads to 2x 30W amplifier chips, I don't know if the specs on those are required as well. It's one of these 3 TI chips and I can't tell the difference between them...