XH-M145 Class D Digital Stereo Amplifier Board | 12V Audio Amp
XH-M145 Class D Digital Stereo Amplifier Board | 12V Audio Amp
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Short Product Description
Short Product Description
Elevate your DIY audio projects with theXH-M145 Class D Digital Amplifier Board. Powered by the original importedYDA138-E audio chip, this compact module delivers high-resolution, crystal-clear stereo sound with an impressive 92% signal-to-noise ratio. Capable of driving up to2x12W (4 ohms), it captures a massive dynamic range—from the faintest cricket chirp to booming bass—with near-zero distortion. Operating efficiently on a standardDC 12V power supply, it requires no bulky heatsinks, making it the perfect heart for your custom speaker builds.
Key Features
Key Features
- Premium YDA138-E Chip: Original imported audio processor delivers high-resolution, low-distortion stereo sound.
- Powerful Dual Channel Output: Pushes 8W + 8W into 8-ohm speakers, or a robust 12W + 12W into 4-ohm speakers.
- High Thermal Efficiency: Class D architecture runs cool without the need for an external heatsink, perfect for compact enclosures.
- Wide Voltage Range: Operates reliably on DC 8-14V (12V 1.5A or 2A+ highly recommended for optimal performance).
- Integrated Safety Protections: Built-in overcurrent and thermal protection keep your audio components safe.
- Easy Wiring Terminals: Screw terminal blocks and a 3.5mm audio jack make installation fast and solder-free.
Full Product Description
Full Product Description
High-Fidelity Audio for Your DIY Projects
Don't settle for flat, lifeless sound in your custom audio builds. The XH-M145 Amplifier Board is engineered around the premium YDA138-E chip, renowned for its high-resolution audio processing. It delivers a wide dynamic range that accurately reproduces every detail of your music. Whether you are building a desktop speaker system, restoring a vintage radio, or creating an arcade cabinet, this board ensures crisp highs and punchy lows with minimal distortion.
Ultra-Efficient Class D Power
Traditional amplifiers generate massive amounts of heat, requiring large, space-consuming heatsinks. Thanks to advanced Class D automatic pulse width modulation, the XH-M145 operates with incredible thermal efficiency. It pushes out a robust 12W + 12W of stereo power (into 4-ohm speakers) while remaining cool to the touch. This "chip without heat" design allows you to install the board into tight, compact enclosures without worrying about overheating.
Built-in Safety & Noise Reduction
Reliability is just as important as sound quality. This digital amplifier board features built-in overcurrent protection and thermal protection, safeguarding your speakers and the circuitry from unexpected power spikes or short circuits. Furthermore, the integrated noise reduction technology ensures a high 92% Signal-to-Noise Ratio (SNR), giving you a clean, static-free audio background even when the volume is cranked up.
Plug-and-Play Connectivity
Designed with the maker in mind, the XH-M145 makes wiring incredibly simple. It features a standard 3.5mm audio jack and a 3-pin connector for flexible audio input. The output and power connections utilize heavy-duty green screw terminal blocks, ensuring a secure, solder-free connection to your 12V power supply and speakers. A built-in rotary volume potentiometer (with included knob hardware) gives you instant, tactile control over your audio levels.
Technical Specifications
Technical Specifications
| Specification | Details |
|---|---|
| Model | XH-M145 (GF1601) |
| Amplifier Chip | Original YDA138-E |
| Working Mode | Class D (Automatic Pulse Modulation) |
| Channel Type | Dual Channel (Stereo) |
| Operating Voltage | DC 8V - 14V (Recommended: DC 12V 1.5A - 2A) |
| Output Power | 12W + 12W (4-ohm speakers) 8W + 8W (8-ohm speakers) |
| Signal to Noise Ratio (SNR) | 92% |
| Quiescent Current | 50mA (at 12V DC) |
| Input / Output Impedance | Input: 80K-90K ohms Output: 4-8 ohms |
| Recommended Speaker | 10W - 60W |
| Cooling Method | High efficiency (No heatsink required) |
| Dimensions | 58 x 36 x 21 mm (excluding potentiometer protrusion) |
| Weight | 26g |
Delivery Options
Delivery Options
- Local delivery within Hong Kong and in-store pickup.
- Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
- Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
- Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
- In-store pickup details (location and time) will be confirmed by email or phone message.
- Delivery times are estimates and may be affected by weather or unforeseen circumstances.
FAQ Section
FAQ Section
- What kind of power supply do I need for this amplifier board?The XH-M145 requires a direct current (DC) power supply between 8V and 14V. For the best audio performance without distortion at high volumes, we highly recommend using a standard DC 12V power adapter with a current rating of 1.5A to 2A (or higher).
- Do I need to attach a heatsink to the chip?No. Because this is a highly efficient Class D amplifier using the YDA138-E chip, it converts almost all power into audio rather than heat. It operates perfectly without any additional cooling or heatsinks.
- What speakers are compatible with this board?This board is designed to drive 4-ohm to 8-ohm passive speakers. It outputs 12W per channel for 4-ohm speakers and 8W per channel for 8-ohm speakers. We recommend pairing it with speakers rated between 10W and 60W for optimal sound quality.
Target Users / Applications
Target Users / Applications
- DIY Audio Enthusiasts: Building custom desktop speakers, bookshelf speakers, or portable boomboxes.
- Arcade & Retro Console Builders: Upgrading the sound systems in custom arcade cabinets or retro gaming setups.
- Makers & Hobbyists: Adding high-quality audio output to Raspberry Pi, Arduino, or other microcontroller projects.
