Work in progress.

Parts foreseen to be used at the moment:

Audio

• Kenwood KFC-W 112 S 300mm subwoofer (800 Watt) - 40CHF
• 2 * JVC CS-J620 coaxial speakers - 20CHF
• TDA7498 200W+100W+100W 2.1 channel digital power amplifier board Class D - 38CHF
• HK623 sound effect IC - 3CHF
• Bluetooth audio receiver board - 2CHF
• 2 * Retevis RT628 PMR walkie talkie - 14CHF

Power

• 24 * Liitokala NCR18650B 3.7V Li-Ion in 7s3p or 8s3p configuration - 52CHF
• 3 * 10s max battery management system - 15CHF
• 2 * Boguang 18V/20W flexible solar cell - 50CHF
• 40A PWM solar charge controller - 14CHF

Mechanics & Control

• 9 * push buttons for power and sound effect control - 10CHF
• 7 * custom made wood pieces with phenol coating - 56CHF

The subwoofer box is designed using the webpage https://speakerboxlite.com/.