Stereo Hi-Fi Amplifier Board — TDA3116D2 Dual Channel 12–24V

The TDA3116D2 Dual Channel Amplifier is a versatile stereo Class D board powered by the popular TPA3116D2 chip. Running on 12–24V DC, it outputs up to 2×50W with excellent efficiency and low distortion — making it a top choice for DIY bookshelf speakers, desktop audio, car audio, and home theater projects.

Why choose it

2×50W stereo: Plenty of power for medium to large speakers
12–24V supply: Works with laptop chargers, car batteries, or bench supplies
Low distortion: Clean audio across the frequency range
High efficiency: ~90% — barely gets warm

Technical specifications

Chip	TPA3116D2 (Texas Instruments)
Output Power	2×50W (4Ω, 24V) / 2×30W (8Ω, 24V)
Channels	2 (stereo)
Class	Class D
Supply Voltage	12–24V DC
Efficiency	~90%
Speaker Impedance	4Ω–8Ω