100W Dual Channel Digital Power Amplifier Board | Stereo Subwoofer
100W Dual Channel Digital Power Amplifier Board | Stereo Subwoofer
100W Dual Channel Digital Power Amplifier Module
Upgrade your audio setup with this powerful 100W per channel digital power amplifier finished board. Engineered for stereo full-frequency and subwoofer applications, this compact amplification module delivers crystal-clear, high-fidelity sound with a signal-to-noise ratio exceeding 100dB. Whether you're building a home audio system, a DIY speaker project, or a custom sound enclosure, this board provides professional-grade amplification in a lightweight, ready-to-use form factor.
Made in Mainland China.
Key Features
- 100W × 2 Output Power — Dual-channel amplification for true stereo performance
- Wide Operating Voltage — 12–24V DC (24V 5A recommended for peak performance)
- Full Frequency Response — 20Hz–20KHz (±1dB) for accurate sound reproduction across the full audio spectrum
- High SNR — >100dB signal-to-noise ratio ensures clean, noise-free audio output
- Excellent Channel Separation — >90dB for true left/right stereo imaging
- Low Distortion — Total Harmonic Distortion (THD) <2% for faithful audio reproduction
- Compact & Lightweight — Board size: 100 × 84.5 × 28mm; Weight: ~150g
- Finished Board — Fully assembled and ready to integrate into your project
Technical Specifications
| Operating Voltage | 12–24V DC (24V 5A recommended) |
| Output Power | 100W × 2 (at 24V / 2Ω load) |
| Output Impedance | 2–8Ω |
| Input Impedance | 20KΩ |
| Signal Input | 600–1200mV P-P |
| Frequency Response | 20Hz–20KHz (±1dB) |
| THD (Distortion) | <2% |
| Signal-to-Noise Ratio | >100dB |
| Channel Separation | >90dB |
| Board Dimensions | 100 × 84.5 × 28mm (excluding protrusions) |
| Weight | 150g |
| Model Number | LH2312 |
What's in the Box
- 1 × 100W Dual Channel Digital Power Amplifier Finished Board
Note: The product is subject to ongoing improvements. Appearance and color may vary between production batches. Please consider this before placing your order if specific aesthetics are important to you.
Pair It With Your Build
Looking for storage and organization solutions for your electronics components? Check out our Airtight Transparent PET Storage Bottle — great for keeping small parts and hardware organized. You may also find our Vintage Baroque Embossed Metal Tray handy for organizing components on your workbench.
Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What power supply do I need for the 100W dual channel digital power amplifier board?
A: The board operates on 12–24V DC. For maximum output power of 100W per channel, a 24V 5A power supply is strongly recommended. Using a lower voltage will reduce the maximum output power accordingly.
Q: Is this digital power amplifier board fully assembled?
A: Yes — this is a finished, fully assembled board ready to integrate directly into your audio project. No soldering of surface-mount components is required; simply connect your power supply, audio input, and speakers.
Q: What speaker impedance is compatible with this amplifier module?
A: The board supports speaker output impedances ranging from 2Ω to 8Ω, giving you flexibility to use a wide variety of speakers and subwoofers in your stereo audio system.
Q: Can this amplifier board be used for subwoofer applications?
A: Absolutely. With a full frequency response of 20Hz–20KHz, this module is well-suited for both full-range stereo and dedicated subwoofer setups, making it a versatile choice for DIY home audio builds.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.