# 2-channel amplifier module, XH-M543, TPA3116D2, 120Wx2, 12-24V

> Stereo amplifier module XH-M543 based on the TPA3116D2, 2 channels, output power 2x120W at 24VDC and 2x50W at 12VDC. Supply voltage DC 12-24V, efficiency over 90%, SNR 100dB. Audio input via a 3-pin XH2.54 connector, cable included. Separate volume potentiometers per channel. Dimensions 92x68mm. No reverse-polarity or short-circuit protection.

- Page: https://sigmanortec.ro/en/2-channel-amplifier-module-xh-m543-tpa3116d2-120wx2-12-24v
- Price: 41.93 RON
- Availability: In stock; 1-2 zile
- Reference: 9687 · EAN: 5947724890010
- Category: Mechatronics and IoT > Sensors and Modules > Audio and Sound > Audio Amplifiers
- Specifications: Type: Amplifier; tension: AD; Power: Over 20W; Supply Voltage: 12; Maximum Input Voltage: 24; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.08 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:33 (Europe/Bucharest)

## Description

The TPA3116D2 stereo amplifier board offers clear and powerful sound for home audio systems or DIY projects, delivers up to 2x120W at 24V, has over 90% efficiency and 100dB SNR for low noise, operates at 12-24V and includes separate volume potentiometers on each channel, the audio input is on the XH2.54 connector with cable included.
The XH-M543 digital audio amplifier board, based on the TPA3116D2 chip, represents a high-quality solution for lovers of pure and powerful sound. Offering two stereo channels, each capable of delivering an impressive 120W of power (at 24VDC), this amplifier is ideal for home audio systems, DIY projects or any application that requires clear audio playback at high volumes. Its optimized design ensures maximum efficiency, minimizing distortion and background noise, while maintaining a compact and manageable shape.
There is no reverse polarity or short circuit protection! Do not feed with a too weak source, otherwise you risk burning the module!
If the amplifier does not work, but it is powered, it is possible that the radiator is too tight, which leads to a short on the SMDs under it. Loosen the heatsink, insulate the SMD contacts from the metal heatsink (a piece of insulating tape on the side of the heatsink that does not touch the IC) and tighten it in place by exerting a little pressure. It is also recommended to add thermal paste between the IC and the radiator.
We recommend the above procedure even with amplifiers that work without problems.
The board has an audio input through the XH2.54mm plug with 3 pins and comes with a cable included in the package.
Each input channel has a potentiometer for adjusting the volume on each individual channel.
It is recommended to add a fan to the existing radiator in case of overheating of the module.
Specifications:
Supply voltage: DC 12-24VDC
Chipset: Compatible TPA3116D2, 2x
Configuration: Stereo Dual-channel
Output power: 2*120W MAX at 24VDC, 2*50W at 12VDC,
Signal to noise ratio (SNR): 100dB
Efficiency: >90%
Dimensions mm: 92 x 68mm
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