The XH-M543 TPA3116D2 Dual-Channel Digital Power Amplifier Board is a high-fidelity, high-power audio solution designed for those who demand professional sound quality in a compact DIY package. At Electrapac, we recommend this board for building powerful home theater systems, active bookshelf speakers, or custom car audio setups.

Product Overview

The XH-M543 is powered by the legendary TPA3116D2 Class D core, providing a massive 120W + 120W stereo output. It features an onboard pre-amplifier stage and high-quality filtering capacitors, ensuring that the audio remains clean and distortion-free even at high volume levels.

Key Features for Electrapac Customers

• Dual-Channel High Power: Capable of driving two 120W speakers simultaneously, making it one of the most powerful modules in its size class.

• Onboard Pre-Amp: Unlike basic boards, the XH-M543 includes an operational amplifier at the input stage, allowing it to boost signals from low-power sources like smartphones or Bluetooth modules.

• Excellent Thermal Management: Equipped with a large, premium aluminum heat sink to dissipate heat effectively, ensuring stable performance during long listening sessions.

• Advanced Protection: Built-in safeguards against over-voltage, under-voltage, overheating, and short circuits protect both the board and your expensive speakers.

• Crystal Clear Audio: High-frequency switching (>1.2MHz) ensures that the audio output is free from AM interference and maintains a high-fidelity "Hi-Fi" profile.

Installation & Wiring Guide

To achieve the best sound performance from your www.electrapac.com purchase, please follow these steps:

1. Power Input: Use a high-quality 24V 5A or 6A DC power supply. While it works at 12V, the power output will be significantly lower (approx. 50W).

2. Audio Input: Connect your source using the provided 3-pin audio cable. For the best experience, pair this with a high-quality DAC or Bluetooth 5.0 module.

3. Speaker Output: Connect 4Ω to 8Ω speakers. Ensure the polarity (+ and -) is correct for both channels to maintain proper sound imaging.

Primary Applications

• Home Theater Systems: Create a powerful 2.0 or 2.1 sound system (with a separate sub-amp).

• Custom Speaker Cabinets: Turn passive speakers into active, high-performance units.

• Car Audio Upgrades: Compact enough to be hidden under a seat or in the trunk to drive high-power door speakers.

• Gaming Stations: High-impact sound for immersive gaming setups.

Why Shop at Electrapac?

We source XH-M543 boards with high-capacitance filter arrays to ensure deep bass response and stable power delivery. Visit us at www.electrapac.com to find this amplifier, 24V industrial power supplies, and high-wattage speakers.