# 4-channel audio amplifier module, 4x3W, XH-A156, 5V

> XH-A156 audio amplifier module, based on the PAM8403 chip, with 4 channels and an output power of 4x3W. Powered by 5V DC, output impedance 4-8 ohms, signal-to-noise ratio up to 90dB. Features a dual input with two 3-wire ports (2xGND, L, R), usable with two separate audio sources or one 4-channel source. Dimensions: 46 x 29 x 13mm.

- Page: https://sigmanortec.ro/en/4-channel-audio-amplifier-module-4x3w-xh-a156-5v
- Price: 13.29 RON
- Availability: In stock; 1-2 zile
- Reference: 9595 · EAN: 5942111670510
- Category: Mechatronics and IoT > Sensors and Modules > Audio and Sound > Audio Amplifiers
- Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.016 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 04:14 (Europe/Bucharest)

## Description

Mini 4-channel audio amplifier, ideal for DIY projects and compact systems such as computer or car speakers. It operates at 5V and offers up to 4x3W at 4-8 ohms, with clear sound and a signal to noise ratio of up to 90dB. It has dual L/R input on two 3-wire jacks, allowing two separate sources or a 4-channel source, small size for easy integration.
The PAM8403 module is a four-channel miniaturized digital audio amplifier that can be used in DIY projects to create a small audio system. It can be powered with a voltage of 5VDC, which makes it suitable for a wide range of applications, including computer speakers, car audio systems and other devices that require sound amplification.
It presents dual input with two ports of 3 wires each (2 x GND, L and R). It can use two totally separate audio sources with separate content playback for each input or a 4-channel audio source.
Specifications:
Supply voltage: 5VDC
Model: XH-A156
Output power: 4 x 3W
Output ways: 4 channels
Output impedance: 4-8 ohms
Signal/noise ratio: up to 90dB
Dimensions: 46 x 29 x 13mm
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