The 82D12 is an integrated digital power amplifier board designed for building or repairing Bluetooth-enabled stereo speakers. Operating on a 12V DC supply, it features a dual-channel (2.0) output, making it an efficient all-in-one solution for wireless audio streaming in a compact form factor.<button></button>

Specifications

• Operating Voltage: DC 12V<button></button>
• Output Power: Typically 10W - 15W per channel (depending on power supply and speaker impedance)
• Channel Count: Dual Channel (Stereo 2.0)<button></button>
• Connectivity: Bluetooth 5.0 (backwards compatible)
• Audio Input: Bluetooth wireless and supports AUX/Line-in
• Onboard Controls: Volume, Mode, Play/Pause, Next/Previous track

Features

• Integrated Bluetooth Stage: Eliminates the need for separate wireless receiver modules, allowing for direct pairing with smartphones and tablets.
• Class D Digital Architecture: High-efficiency power stage that provides clear audio output with minimal heat generation, even during extended use.<button></button>
• Plug-and-Play Design: Features easy-to-use headers or solder pads for power and speakers, simplifying the assembly of custom boomboxes or active speakers.<button></button>
• Automatic Reconnection: Automatically pairs with the last known device upon power-up for a seamless user experience.
• Compact Footprint: Small PCB size allows it to be easily hidden within speaker enclosures or small DIY projects.<button></button>

Common Applications

• Repairing and upgrading older non-Bluetooth bookshelf speakers.
• Building custom portable Bluetooth boomboxes and DIY audio crates.
• Adding wireless audio to automotive or motorcycle sound systems.<button></button>
• Desktop audio amplifiers and small home theater setups.