Electronics Projects
Version 1
Version 1
"Off-grid Solar Sound System" Version 1
The OG. 75x75x75x75x500 watts (4.1 channel)
Parts List
- Mono Subwoofer amplifier Sure Electronics WONDOM 1 X 500Watt Class D Audio Amplifier Board Compact - T-AMP AA-AB31511 (I supply it with a higher voltage than the stereo amps below) -- it has a separate boost converter.
- Stereo Amp (2) for the 4 speakers: TDA7498 Class D 2X100W Dual Channel Audio Stereo Digital Amp Board AMP+case. I supply these with 30 volts from their own boost converter.
- 600 watt boost converter (note: these are overkill, I think you could get by with 200-300 watt boost converters to be honest, and you might have less power draw. DC-DC Boost Module 600W Constant Voltage Current car Regulator Solar Charge
- Bluetooth receiver Audiopipe Marine Bluetooth Audio Receiver Converts any Amplifier
- 12v Sealed Lead Acid batteries (I used 2 in series for 24v), though I have since upgraded to a LifePo battery which has its own BMS ExpertBattery Replacement For UB12120 12v 12Ah 12 volt 12 Amp-hr BATTERY SLA
- 24 volt to 12 volt converter (to run the 12v components) Truck DC 24v to 12v Step Down Converter Reducer Regulator 2A 24W Power Supply Adapter for Auto Car Vehicle Boat Solar System etc.(Accept DC15-40V Inpu
- Solar Charge Controller (note: this thing is totally not MPPT -- it is PWM). And, I'm sure there are newer/better options -- I bought the 10amp version. LCD 10/20/30/40A 12/24V MPPT Solar Panel Regulator Charge Controller 3 Timer
- 24 volt AC charger (I cut the DC plug off and replaced it with an Anderson connector: Power Recliner Adapter,TFDirect 29V 2A AC/DC Adapter for IKOCO Kaidi Limoss Okin Motion Pride Lift Chair Pride Lift Chairs CTLDC1582 Electric Power Re
- Banana plug posts (though I am switching to Speakon connectors (see below): Wiwaplex 10Pcs Gold plated Insulated Terminal Binding Post Power Amplifier Dual 2-way Banana Plug Jack
- Speakon connectors: Glarks 5 Pack 4 Pole Square (Rectangle) Female Panel Mount Socket Twist Lock Speaker Compatible with Neutrik Speakon NA4LJ, NA4LJX, NL4MP, NL4MPR, NL4
- Glarks 5 Pack 4 Pole Audio Speakon Cable Mount Connector Twist Lock Speaker Plug Compatible with Neutrik Speakon NA4LJ, NA4LJX, NL4MP, NL4MPR, NL4FC,
Version 2
Version 2
"Off-grid Solar Sound System" Version 2
Smaller, simpler, more battery life, but less powerful -- 50x50x100 watts