Product Description
XH-M543 high-performance digital amplifier board adopts single original TPA3116D2 chip, delivering up to 120W×2 dual-channel stereo output. **Built-in TL074C operational amplifier pre-amplifier** is the core advantage of this board: audio signals are first amplified by the op-amp chip before entering the power amplifier stage, resulting in more shocking volume and richer sound details.
With wide 12V-28V voltage input range (24V recommended) and compact size, it is perfect for building high-power DIY speakers, professional stage audio systems, car audio modification and home theater main channels.
Technical Specifications
- Model: XH-M543
- Main Chip: 1× TPA3116D2
- Onboard Pre-amplifier: TL074C Op-amp
- Power Supply: DC 12V-28V (**24V recommended for best performance**)
- Maximum Output Power: 120W×2 Dual Channel Stereo
- Channels: 2.0 Stereo
- Product Size: 92×69×18mm
- Installation Size: 85.5×62mm (Mounting hole diameter: 3.2mm)
- Net Weight: 72g
Core Advantages
- ✅ **Built-in TL074C op-amp pre-amplifier**: Enhances audio signal strength, delivers more shocking volume and richer sound details
- ✅ Up to 120W×2 high power output, sufficient for professional audio applications
- ✅ Wide voltage input range: DC 12V-28V, compatible with 12V/24V power systems
- ✅ Compact size with clear installation dimensions, easy to integrate into various enclosures
- ✅ High efficiency Class D design, low heat generation
- ✅ Stable and reliable performance, suitable for long-term operation
Simple Operation Guide
1. Connect the power input terminal to a DC 12V-28V power supply (24V is highly recommended)
2. Connect the audio input terminal to your audio source (MP3 player, mobile phone, computer, etc.)
3. Connect the audio output terminal to speakers, paying attention to positive and negative polarity. **Professional stage speakers with 120W or higher power rating are recommended** to fully utilize the board's performance
### ⚠️ IMPORTANT USAGE WARNINGS
1. **Maximum input voltage is 28V**, do not exceed this value to avoid permanent damage to the module
2. Always connect speakers first before powering on the amplifier board
3. Ensure correct polarity when connecting speakers and power supply
4. For full 120W×2 power output, use a stable DC 24V power supply with sufficient current capacity
5. Use speakers with rated power of 120W or above to prevent speaker damage
Applicable Scenarios
- DIY high-power bookshelf and floor-standing speakers
- Professional stage audio systems
- Car audio modification and upgrade
- Home theater main channel systems
- Active speaker system upgrades
- Multimedia audio systems
Package List
1 × XH-M543 TPA3116D2 120W×2 Dual Channel Digital Amplifier Board with TL074C Pre-amplifier
Notes
1. Slight 1-2mm size deviation exists due to manual measurement
2. Item color may have minor differences influenced by different monitor displays and lighting conditions
3. For best sound quality, use high-quality shielded audio cables
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