Bluetooth Boom Box

This boom box is centered around two 3 inch (77mm) 4ohm 20 watt speakers and a readily available  Bluetooth amplifier board that features bass and treble control. 

Honestly don't bother with the tweeters, I didn't notice a difference and sourcing a standard pair is a bit difficult. Just print the plugs and glue them in. 

Power! Ok this amp has minimum voltage of 12v and can go up to 24v, you can over power the speaker easily. Figure what wattage you need and choose a power supply that works for you. With the speakers listed below you will want something that can run 40 watts at a minimum, I linked a 12v 5amp which is more than needed at 60 watts.  Be warned, its loud

Here are the parts I used on my build:

https://amzn.to/47Hlz1v      Amp board with bluetooth
https://amzn.to/4oDx1kB    3 inch 4ohm 20w 2pack
https://amzn.to/49gURhp    Stainless steel metric button head hardware kit
https://amzn.to/49PX57C     knurled thread insert nut kit
https://amzn.to/449DT0Q    DC Power Jack Socket 5.5 x 2.5
https://amzn.to/4pfOpfq      12v 5amp Power supply

My favorite tools:
https://amzn.to/3K2hWdq    Mini Electric Screwdriver Set
https://amzn.to/3XhFGxn      T12 style Soldering Station
https://amzn.to/4i7eyuy        Deburring Tool
https://amzn.to/49mZI0E      Butane Torch
https://amzn.to/4paJTyu       Crimping Tool for Insulated Electrical Wire Connectors-AWG 22-10
https://amzn.to/47Z13rU      Pin Crimping Tool Kit, Dupont Connector kit