I try out a cheap amplifier module featuring a PAM8403 chip by hooking it up to some speakers and playing some tunes. This device is a 3W+3W dual channel (stereo) class-D audio amp in a SOIC-16 package.

The amplifer module I purchased:
http://www.aliexpress.com/item/New-Mi...

The speakers in the video are from Jaycar, catalogue number AS3034:
http://www.jaycar.com.au/Sight-%26-So...

The Datasheet is available here:
http://www.diodes.com/datasheets/PAM8...

This video features free music from the YouTube Audio Library:
https://www.youtube.com/audiolibrary/...
"Sydney's Skyline" by ALBIS
"9th Symphony, Finale" by Beethoven