XH-M228 Ultra-Thin Digital Audio Amplifier Board – 2x15W High-Efficiency Class D Amp (TPA3110 Chip, Superior to PAM8610)

SKU: FA2006-6-1
Amplifier Chip

TPA3110 (Texas Instruments)
Amplifier Type

Pure Digital Class D
Channels

2 (Dual Channel Stereo)
Output Power

2 x 15W (4Ω load @ 12V-24V DC)
Input Voltage

DC 8V ~ 24V
Efficiency

>90%
Output Impedance

4Ω ~ 8Ω (4Ω recommended)
Dimensions

Approx. 33mm x 25mm x 3mm (ultra-thin)
The XH-M228 Ultra-Thin Digital Audio Amplifier Board is a high-efficiency Class D stereo amplifier module based on the robust Texas Instruments TPA3110 chip. It delivers a powerful 15 watts per channel and is often considered a superior, more durable alternative to modules using the PAM8610 chip for applications requiring stable performance and a broader voltage tolerance.
Description
The XH-M228 Ultra-Thin Digital Audio Amplifier Board offers a compact and powerful solution for various audio amplification needs. Utilizing the reliable TPA3110 chip from Texas Instruments, this board operates in high-efficiency Class D mode, ensuring minimal power loss and significantly less heat generation. This results in efficiencies often exceeding 90%, making it ideal for continuous use in both stationary home audio setups and portable projects.
The board delivers a consistent and robust 15 watts per channel (at 4Ω impedance) with an input voltage between 8V and 24V DC. Its wide voltage tolerance is a key advantage over the PAM8610, allowing greater flexibility in power sources, from car batteries to various DC adapters. The ultra-thin design facilitates easy integration into tight spaces, speaker enclosures, or discreet installations.
The XH-M228 is designed for simplicity and durability. It features screw terminals for secure connections for power input, speakers, and audio input. A key feature is the inclusion of dedicated Mute pins, offering advanced control options for users integrating the amplifier into more complex electronic systems. Its design focuses on delivering clean, high-definition stereo audio with excellent signal-to-noise ratio and low distortion, making it a reliable and cost-effective choice for both hobbyists and professional audio engineers.
Features
  • High-Efficiency Class D Technology: Utilizes the TPA3110 chip for over 90% power efficiency, reducing heat output and power consumption.
  • Robust & Wide Voltage Range: Operates reliably from 8V to 24V DC, offering greater flexibility than 12V-specific boards.
  • Powerful Stereo Output: Delivers a consistent 15W per channel (into 4Ω speakers) for loud and clear sound.
  • Advanced Control Options: Includes Mute control pins for easy integration with microcontrollers or system switching (active low mute).
  • Superior to PAM8610: Often cited as a more stable, durable, and higher voltage tolerant alternative to the PAM8610 module.
  • High Fidelity Audio: Provides high-definition stereo sound with excellent signal-to-noise ratio and low total harmonic distortion.
  • Ultra-Thin Design: Compact and slim form factor facilitates integration into tight enclosures and DIY speaker projects.
Usage
The XH-M228 amplifier board is designed for ease of wiring and integration:
  1. Power Connection: Connect a stable DC power source (8V-24V, 2A+ current is recommended) to the power input screw terminals. Ensure correct polarity (positive/negative).
  2. Speaker Connection: Connect your passive speakers (4Ω is ideal, 8Ω is also compatible) to the corresponding left and right channel output screw terminals (SPK+/- for each channel).
  3. Audio Input: Connect your audio source (phone, MP3 player, decoder board, computer audio out) to the 3-pin audio input header using a shielded cable to minimize interference. The pins are typically labeled L (Left), R (Right), and GND (Ground).
  4. Mute Control (Optional): The board has dedicated mute pins. By default, it operates normally. To mute the audio output, pull the Mute pin low (connect to GND).
Q: What is the main advantage of the TPA3110 chip over the PAM8610?

The TPA3110 is generally considered more robust and stable, and critically, it supports a much wider and higher input voltage range (up to 24V) compared to the PAM8610 (max 15V), offering more flexibility in power supply choices

Q: Does this board have a built-in volume control?

No, this specific model (XH-M228) does not typically include an onboard volume potentiometer. Volume must be controlled by your audio source device (phone, MP3 player) or an external pre-amplifier/potentiometer installed before the audio input.

Q: Can I power the board with a 12V car battery?

Yes, the 12V operation is optimal for car audio systems. The wider voltage tolerance up to 24V also makes it resistant to slight voltage fluctuations in vehicle power systems

Q: Why does the product description state it is superior to the PAM8610?

This claim usually highlights the TPA3110’s better voltage tolerance (up to 24V vs 15V), which means less risk of blowing the chip if a higher voltage power supply is accidentally used, leading to greater durability

Q: Will this generate a lot of heat when running at 15W?

No. As a Class D amplifier with >90% efficiency, it generates very little heat during normal operation, even at full power. A heatsink is generally not required for this module.

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