H3-2CH 2 × 1800W 2-Channel Class D DSP Amplifier Module for Active Subwoofers
Product Overview
The H3-2CH is a professional 2-channel Class D DSP amplifier module designed for high-power active subwoofer systems. It integrates a Class D amplifier board, switching power supply, and DSP processor into one compact plate-amplifier module.
Delivering 2 × 1800W at 4Ω and 2 × 1500W at 8Ω, the H3-2CH provides powerful and controlled low-frequency performance for dual 15-inch and dual 18-inch active subwoofer cabinets.
The integrated DSP supports EQ, crossover, delay, limiter, polarity, gain, mixer, and mute functions. Parameters can be adjusted through a computer using USB or RS-485, allowing precise system tuning for different speaker designs and installation environments.
With high-efficiency amplification, multiple protection functions, and compact installation dimensions, the H3-2CH is suitable for professional PA systems, touring applications, fixed installations, and OEM/ODM active loudspeaker projects.
Key Features
High-Power Dual-Channel Output
The H3-2CH delivers:
- 2 × 1500W at 8Ω
- 2 × 1800W at 4Ω
Its high output power makes it suitable for professional dual-driver active subwoofer systems requiring strong and controlled bass performance.
Integrated 3-in-1 Design
The module combines:
- Class D amplifier board
- Switching power supply
- DSP processor
This integrated structure reduces internal wiring, simplifies installation, and improves production efficiency.
Built-In DSP Processing
The DSP system supports:
- Mute
- Polarity
- Gain
- Delay
- Limiter
- Mixer
- Equalizer
- Crossover
DSP parameters can be configured through USB or RS-485, providing flexible control for different loudspeaker systems.
High-Efficiency Class D Technology
The Class D amplifier design provides powerful output with reduced heat generation and lower energy consumption. It supports stable performance during continuous high-power operation while helping reduce the size and weight of the complete speaker system.
Comprehensive Protection System
The H3-2CH includes:
- Short-circuit protection
- DC protection
- Over-voltage protection
- Under-voltage protection
- Over-current protection
- Over-temperature protection
These protection functions help safeguard both the amplifier module and connected loudspeaker drivers.
Multiple Operating-Voltage Options
The H3-2CH is available in different voltage versions:
- 110V version: 90–135 VAC
- 220V version: 180–265 VAC
- PFC version: 90–265 VAC
This makes the amplifier suitable for different international markets and installation requirements.
Compact and Easy to Install
With compact dimensions of 312 × 190 × 120mm, the H3-2CH provides high output power without occupying excessive cabinet space. The plate-amplifier design allows direct installation into active subwoofer enclosures.
Why Choose the H3-2CH?
The H3-2CH combines 2 × 1800W high-power output, built-in DSP control, high-efficiency Class D technology, and comprehensive protection in a compact design. It is an ideal solution for dual 15-inch or dual 18-inch active subwoofers, professional PA systems, and OEM/ODM projects.
Applications
- Dual 15-inch active subwoofer cabinets
- Dual 18-inch active subwoofer cabinets
- Professional PA systems
- Touring and live-event sound systems
- Cinema and theatre bass systems
- Clubs, stadiums, and entertainment venues
- Fixed sound installations
- OEM and ODM powered-speaker projects
Technical Specifications
| Specification | H3-2CH |
|---|---|
| Model | H3-2CH |
| Number of Channels | 2 |
| Output Power at 8Ω | 2 × 1500W |
| Output Power at 4Ω | 2 × 1800W |
| Amplifier Class | Class D |
| Frequency Response | 20Hz–20kHz, ±1dB |
| THD+N, 1kHz, 1W, 8Ω | <0.1% |
| Signal-to-Noise Ratio, 1kHz | >100dB |
| Channel Separation, 1kHz | >70dB |
| Input Sensitivity | 1V |
| Input Impedance | 20kΩ |
| DSP Functions | Mute, Polarity, Gain, Delay, Limiter, Mixer, EQ, Crossover |
| DSP Control | USB and RS-485 |
| Protection | Short Circuit, DCP, OVP, UVP, OCP, OTP |
| 110V Operating Version | 90–135 VAC |
| 220V Operating Version | 180–265 VAC |
| PFC Operating Version | 90–265 VAC |
| Dimensions (W × H × D) | 312 × 190 × 120mm |
| Packing Dimensions | 350 × 210 × 150mm |
| Net Weight | 4.9kg |
| Gross Weight | 5.9kg |
Short Description
The H3-2CH is a professional 2-channel Class D DSP amplifier module delivering 2 × 1800W at 4Ω. It integrates a switching power supply, high-efficiency amplifier, and configurable DSP with USB and RS-485 control. Designed for dual 15-inch and dual 18-inch active subwoofers, it provides powerful output, flexible tuning, and reliable protection in a compact plate-amplifier design.
