
H103S-2CH 1600W + 550W 2-Channel Class D DSP Plate Amplifier Module for Active Speakers
Product Overview
The H103S-2CH is a high-power 2-channel Class D DSP plate amplifier module designed for active PA speakers, full-range loudspeakers, line array systems, column speakers, and powered subwoofer applications.
Delivering 1000W + 300W at 8Ω and 1600W + 550W at 4Ω, the H103S-2CH provides powerful and stable output for bi-amped speaker designs. It is suitable for driving low-frequency and mid/high-frequency sections independently, helping speaker manufacturers build compact, efficient, and professional active sound systems.
With a built-in DSP processor, the H103S-2CH offers flexible audio control including mute, polarity, gain, delay, limiter, EQ, and crossover adjustment. Users can easily configure and tune the system through PC software via USB or RS-485 connection, making it ideal for OEM speaker production, professional installations, and customized PA system projects.
Key Features
High Power Output
The H103S-2CH delivers 1000W + 300W at 8Ω and 1600W + 550W at 4Ω, providing strong and reliable power for professional active loudspeaker systems.
2-Channel Bi-Amp Design
Two independent amplifier channels allow precise power distribution between low-frequency and mid/high-frequency drivers, making it ideal for active two-way speakers, line array cabinets, and subwoofer systems.
Built-In DSP Processing
Integrated DSP provides advanced control functions including Mute, Polarity, Gain, Delay, Limiter, EQ, and X-Over, allowing accurate system tuning for different speaker designs.
USB & RS-485 Control
The amplifier can be managed through PC software using USB or RS-485, offering convenient setup, tuning, and system adjustment for professional audio applications.
High-Efficiency Class D Platform
Class D amplifier technology provides high efficiency, lower heat generation, and strong output performance while keeping the module compact and lightweight.
Compact Plate Amplifier Structure
The compact design makes it suitable for active speaker integration, OEM loudspeaker manufacturing, and upgrading passive speaker cabinets into active systems.
Complete Protection System
Built-in protection includes short circuit, DCP, OVP, UVP, OCP, and OTP protection, helping ensure stable and reliable operation in demanding professional environments.
Applications
Active two-way loudspeakers
Full-range PA speaker systems
Line array speaker systems
Column speaker systems
Powered subwoofer systems
Bi-amped professional speaker cabinets
Fixed installation audio systems
Touring and live sound systems
OEM active speaker manufacturing
Passive speaker upgrade projects
Technical Specifications
| Item | Specification |
|---|---|
| Model | H103S-2CH |
| 8Ω Stereo Power | 1000W + 300W |
| 4Ω Stereo Power | 1600W + 550W |
| Frequency Response | 20Hz – 20kHz ±1dB |
| THD+N | <0.1% at 1kHz, 1W, 8Ω |
| Signal-to-Noise Ratio | >100dB at 1kHz |
| Channel Separation | >80dB at 1kHz |
| Amplifier Class | Class D |
| Protection | Short Circuit, DCP, OVP, UVP, OCP, OTP |
| Operating Voltage | 110V Version: 90V–135V / 220V Version: 180V–265V / PFC Version: 90V–265V |
| Input Sensitivity | 1V |
| Input Impedance | 20kΩ |
| DSP Function | Mute, Polarity, Gain, Delay, Limiter, EQ, X-Over |
| DSP Control | USB and RS-485 |
| Dimensions W × H × D | 326 × 153 × 128 mm |
| Net Weight | 3.25 kg |
| Gross Weight | 4.25 kg |
Why Choose H103S-2CH?
The H103S-2CH combines high-power Class D amplification, built-in DSP processing, flexible PC control, and complete protection functions in one compact plate amplifier module. It is an ideal solution for professional active speaker systems, bi-amped loudspeaker designs, line arrays, subwoofers, and OEM audio manufacturing projects requiring high reliability, flexible tuning, and powerful output performance.

