AJMRTC ZK-502C HIFI Stereo Bluetooth 5.0 Digital Amplifier Board, TPA3116D2 50W×2 Class D Audio AMP Module, AUX & Wireless Input Volume Control Potentiometer for DIY Speaker Home Audio Project

AJMRTC ZK-502C HIFI stereo digital amplifier board is built around TPA3116D2 high-performance Class D audio chip, offering 50W+50W powerful stereo output to drive 4-8 passive speakers. It supports Bluetooth 5.0 wireless audio streaming up to 15 meters obstacle-free distance, and also comes with 3.5mm AUX analog input for wired audio sources like MP3 player, computer and phone. This amplifier module integrates a rotary potentiometer for volume adjustment and power switch. With built-in filter circuit, it provides smoother, clearer sound and reduces audio distortion. The wide DC 5V~27V power input allows multiple power adapter options. Multiple safety protection mechanisms prevent damage from short circuit, overheating, overvoltage and undervoltage during operation. The high-efficiency Class D design generates less heat than traditional analog amplifiers. Small PCB footprint makes it easy to embed inside speaker cabinets. It is an excellent DIY audio kit for building wireless speakers, home mini sound systems and audio modification projects.

Specifications

1. Brand: AJMRTC
2. Model: ZK-502C
3. Chip: TPA3116D2 Class D Amplifier IC
4. Output Power: 50W × 2 (Stereo)
5. Bluetooth Version: Bluetooth 5.0
6. Audio Input: Bluetooth Wireless + 3.5mm AUX
7. Working Voltage: DC 5V ~ 27V
8. Speaker Impedance: 4 ~ 8
9. Protection: Short Circuit, Overheat, Overvoltage, Undervoltage
10. PCB Size: 82 × 50mm
11. Application: DIY Bluetooth Speaker, Home Audio System, Speaker Modification