DEVMO 2 PCS Audio Amplifier Board,5W+5W Mini Amplifier Board PAM8406 DC 5V Digital Stereo Power Amp 2.0 Dual Channel Class D Amplify Module for Speaker Sound System DIY

The Audio Amplifier Board (ASIN ‎B08RS8GTXV) from DEVMOI'm working on a MAME cabinet, so was looking to pick up a cheap amplifier. Given the asking price, I was expecting cheaply assembled boards with substandard components. These, however, exceeded my expectations. These are done very nicely, perform equally well and were a snap to install. Highly recommended.

Powering them off a good source helps a lot. I’m using a single 24volt source with down converters to keep everything on one switch and source. Easy to set up and operate. A solid product and great for the price

This is a package of two mini audio amplifier boards. The include a knob that has a threaded post and nut for hole mounting. The board runs on 5vdc, no power supply is included. Line-level left and right inputs are screw terminal, as is the power supply input. The speaker level output is via a single 1/8" (3.5mm) stereo jack. The build quality seems very decent and though I cannot verify the specs it works and seems pretty quiet as far as noise level. This is designed for line level signals coming in, not mic or magnetic phono levels. It works great with the level coming out of a headphone jack or an AUX output from a Bluetooth receiver.

I was hoping for a simple plug and play system for a cosplay helmet but I'm told this thing needs a pre-amp to pic up vocal from a mic.