HiFi 60W Mono Digital Amp Board | Class D Subwoofer Amplifier Module with Low THD for Car/Home Audio

Key Advantages

1. High-Efficiency Class D Design
   • Delivers 60W RMS (4Ω load) with >90% efficiency, minimizing heat generation and power consumption—ideal for enclosed spaces like car trunks or small speaker cabinets.
2. Ultra-Low Distortion (THD ≤0.05%)
   • Ensures clean, punchy bass without muddiness, even at maximum volume, by reducing harmonic distortion and intermodulation artifacts.
3. Built-In Pre-Amplifier Circuit
   • Eliminates the need for an external preamp by integrating gain control (20dB–60dB adjustable) and bass boost (0dB–12dB) for fine-tuning low-frequency response.
4. Wide Input Voltage Range (DC 12V–24V)
   • Compatible with car batteries (12V), aftermarket power supplies (19V/24V), or home audio systems, supporting stable operation across voltage fluctuations.
5. Compact & Lightweight (PCB Size: ~100×60mm)
   • Fits tight spaces in car audio installations, DIY speaker builds, or portable bass setups (e.g., for parties or outdoor events).
6. Short-Circuit/Overload Protection
   • Automatic shutdown prevents damage from speaker wire shorts, excessive power draw, or overheating, extending the module’s lifespan.
7. Low-Noise Operation (SNR ≥95dB)
   • Reduces background hiss and hum, ensuring silent idle performance when paired with high-sensitivity subwoofers.
8. Easy DIY Integration
   • Labelled terminals for power input, speaker output, and signal input simplify wiring, even for beginners. Supports RCA or bare wire connections.

Technical Specifications

• Power Output: 60W RMS (4Ω, 1kHz, THD=1%) | 40W RMS (8Ω)
• Input Voltage: DC 12V–24V (recommended 18V–24V for full power)
• Frequency Response: 20Hz–200Hz (adjustable via bass boost)
• THD+N: ≤0.05% (1W, 100Hz)
• SNR: ≥95dB (A-weighted)
• Gain Range: 20dB–60dB (adjustable via potentiometer)
• Bass Boost: 0dB–12dB @ 50Hz
• Operating Temperature: -10°C–60°C
• Dimensions: ~100mm (L) × 60mm (W) × 20mm (H)
• Weight: ~80g

Target Applications

1. Car Audio Subwoofer Upgrades
   • Replace factory amplifiers to power aftermarket 8-inch or 10-inch subwoofers, delivering deep, impactful bass without draining the car battery.
2. Home Theater Bass Enhancement
   • Add a dedicated subwoofer channel to existing 2.1 or 5.1 systems, improving low-frequency extension for movies and music.
3. DIY Portable Bass Systems
   • Build a battery-powered subwoofer for outdoor events, beach parties, or camping by pairing with a 12V power bank and compact enclosure.
4. Studio Monitoring Subwoofer
   • Create a low-cost reference sub for music production, ensuring accurate mixing of kick drums and basslines with adjustable gain and frequency response.
5. Gaming/VR Audio Setup
   • Enhance immersion in games or VR experiences by adding physical bass feedback for explosions, footsteps, or environmental effects.
6. Educational/Experimental Projects
   • Study Class D amplifier design, filter circuits, or speaker protection mechanisms by modifying the module’s components (e.g., replacing inductors/capacitors).
7. Commercial Audio Installations
   • Power subwoofers in restaurants, retail stores, or small venues where space is limited but deep bass is required for background music or announcements.
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