H155S-2CH 1800W +700W High-Power 2-Channel Class D DSP Plate Amplifier Module for Professional Active Speaker Systems
Product Overview
The H155S-2CH is a high-power 2-channel Class D DSP plate amplifier module designed for professional active speaker systems, 2-way line array cabinets, powered subwoofers, compact PA systems, and OEM loudspeaker manufacturing.
Delivering 1500W + 500W at 8Ω and 1800W + 700W at 4Ω, the H155S-2CH combines powerful amplification, intelligent DSP processing, and compact plate amplifier integration in one professional module. It allows speaker manufacturers and system designers to build cleaner, more compact, and better-optimized active speaker systems without relying on external processors or separate amplifier racks.
With built-in DSP functions including Mute, Polarity, Gain, Delay, Limiter, EQ, and X-Over, the H155S-2CH provides precise control for crossover management, driver alignment, system protection, and acoustic tuning.
Key Features
High-Power 2-Channel Output
The H155S-2CH provides 1800W + 700W at 4Ω, delivering strong low-frequency power and clear mid/high-frequency output for professional active loudspeaker systems.
Integrated DSP Control
Built-in DSP processing supports crossover, EQ, delay, limiter, gain, polarity, and mute functions, allowing accurate sound tuning for different cabinet designs and driver combinations.
Ideal for 2-Way Active Line Array Cabinets
For active line array systems, the H155S-2CH provides dedicated amplification for different frequency sections. Internal DSP crossover and time alignment help improve driver coherence, coverage consistency, and system performance.
Active Subwoofer + Passive Top Configuration
The H155S-2CH can also be used in compact PA systems where one channel powers the subwoofer and the second channel drives passive full-range speakers. DSP management helps handle crossover and protection internally, reducing external equipment, wiring, and setup complexity.
High-Efficiency Class D Design
The Class D amplifier platform offers high power density, low heat generation, and efficient operation. Its compact structure makes it easy to integrate into active speaker cabinets while maintaining stable long-term performance.
Wide Voltage Power Supply Options
The H155S-2CH is available with 110V, 220V, and PFC wide voltage 90V–265V power supply versions, making it suitable for global markets and different installation requirements.
USB & RS-485 DSP Control
The module supports DSP adjustment through USB and RS-485, allowing users to configure parameters, manage presets, and fine-tune the speaker system through PC software.
Professional Protection System
Built-in protection includes Short Circuit, DCP, OVP, UVP, OCP, and OTP, helping protect both the amplifier module and loudspeaker drivers during demanding professional operation.
Typical Applications
Active PA speaker systems
2-way active line array speakers
Powered subwoofer systems with passive tops
Compact portable PA systems
Professional installation audio systems
Touring and rental sound systems
OEM / ODM powered speaker manufacturing
Technical Specifications
| Item | Specification |
|---|---|
| Model | H155S-2CH |
| 8Ω Stereo Power | 1500W + 500W |
| 4Ω Stereo Power | 1800W + 700W |
| 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 Functions | Mute, Polarity, Gain, Delay, Limiter, EQ, X-Over |
| DSP Control | USB and RS-485 |
| Dimensions | 477 × 152 × 105 mm |
| Net Weight | 3.25 kg |
| Gross Weight | 4.25 kg |
Why Choose H155S-2CH?
The H155S-2CH is a powerful and flexible DSP plate amplifier module for professional active loudspeaker systems. With high-power 2-channel Class D output, integrated DSP control, compact installation design, USB / RS-485 connectivity, wide voltage power supply options, and comprehensive protection, it is an ideal solution for active line array cabinets, powered PA speakers, subwoofer systems, and OEM speaker manufacturing.
