After submitting the circuit decided to blow, this due to the step-up module.

As the Printed Circuit Board blew several times after several attempts. I went to the School of Engineering and Technology to see if I could require some assistance with the circuit.

The list of electronics changed slightly.

The speaker enclosure now contains:

  • Amplifier and Bluetooth Board
  • DC Plug Adapter
  • Rechargeable Batteries
  • On/Off Button
  • In-line fuses
  • Positive and Negative Wire
  • Heat Shrink Tubing
  • Nuts and Bolts

I decided to go for a preventative measure which where the in-line fuses these are to protect the batteries and the Amplifier and Bluetooth Board which would be more cost effective that constantly changing these items on a regular bases.