I need build a amplifier for PC

[vincitytaymodaimo]

An early prototype of handheld RetroPie I'm working on. The only custom parts are the acrylic panels, everything else is off the shelf components. For now I've tested all components and they work. Battery lasts for 5 hours which is fine for a Raspberry Pi 3B+. Next step is to refine the design.

I want to build like that but change little of amplifer to 4W, so it can crash ?
3.5" HDMI screen
Raspberry Pi 3B+
Buttons and PCB from cheap SNES controller
2.5W mono amplifier
0.5W 8ohm speaker
5000 mAh power bank
Two 5mm tactile switches for L and R buttons

[doro44]

You could use a mini amplifier breakout board like this one:
https://www.aliexpress.com/item/5PCS-PA ... 4c4db3OtyZ
I have few at home and they work just fine...