XH-M546 TPA3116D2 Digital Amplifier Board 150W×2 Dual Channel Built-in Pre-amplifier DC 12-24V Class D Super High Power Audio Module

Product Description XH-M546 super high power digital amplifier board adopts original TPA3116D2 chip with **built-in preset pre-amplifier**, no additional pre-stage module required, plug and play. Features high-efficiency Class D operation with >90% power efficiency and low idle loss. Adopts advanced feedback power stage architecture with high PSRR, reducing power supply requirements. Integrated comprehensive self-protection system ensures safe and stable long-term operation. Perfect for building high-power DIY speakers, home theater main channels, car audio modification and professional audio equipment upgrades.

Technical Specifications - Model: XH-M546 - Main Chip: TPA3116D2 - Built-in Function: Preset pre-amplifier - Power Supply: DC 12V-24V - Recommended Input Current: >3A (5A+ required for full 150W×2 power output) - Output Power: 150W×2 Dual Channel Stereo - Amplifier Class: Class D - Power Efficiency: >90% - Input Type: Differential / Single-ended - Protection Functions: Overvoltage protection / Undervoltage protection / Overheat protection / DC detection / Short circuit protection - Product Size: 125×88×18mm - Net Weight: 170g

Core Advantages - ✅ **Built-in preset pre-amplifier**: No need for additional pre-stage modules, simplifies system design - ✅ **Super high power output**: 150W×2 dual channel, provides powerful and dynamic sound - ✅ **>90% high efficiency Class D design**: Low heat generation, no large heat sink required - ✅ **High PSRR feedback architecture**: Reduces sensitivity to power supply quality - ✅ **Comprehensive 5-in-1 protection system**: Ensures safe and reliable operation - ✅ **Supports both differential and single-ended input**: Compatible with various audio sources - ✅ **Single power supply operation**: Reduces component count and system complexity - ✅ **Heat-resistant enhanced packaging**: Durable and suitable for long-term high-power operation

⚠️ IMPORTANT USAGE WARNINGS 1. **Recommended power supply**: DC 12V-24V switching power supply with 5A or higher output current for full power performance 2. **Maximum input voltage is 24V**, do not exceed this value to avoid permanent damage to the chip 3. **Never short circuit speaker output terminals to each other or to ground** 4. **Always connect speakers (load) first before powering on** the amplifier board 5. Supports both differential and single-ended audio input modes

Applicable Scenarios - DIY high-power bookshelf and floor-standing speakers - Home theater main channel systems - Car audio modification and upgrade - Active speaker system upgrades - Professional audio equipment - Multimedia audio systems

Package List 1 × XH-M546 TPA3116D2 150W×2 Dual Channel Digital Amplifier Board with Built-in Pre-amplifier

Notes 1. Slight 1-3mm 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 speakers with power rating between 100W-200W and 4Ω-8Ω impedance