H2L Series 2-Channel Class-D DSP Plate Amplifier Module for Active Speakers
Product Overview
The H2L Series is a professional Class-D DSP plate amplifier platform designed for active full-range speakers, powered subwoofers, two-way loudspeakers, stage monitors, and OEM/ODM speaker projects.
Each module integrates a high-efficiency Class-D amplifier, switch-mode power supply, and professional DSP processor into one compact plate-amplifier solution. Four configurations are available for different loudspeaker designs and power requirements:
- H2L: 2-channel amplifier for active full-range speakers
- H2L-SUB8: High-power mono amplifier for 8Ω subwoofers
- H2L-SUB4: High-power mono amplifier for 4Ω or 8Ω subwoofers
- H2L-TWO: 2-channel amplifier for two-way bi-amplified speakers
With output power of up to 1,800W RMS, PC-based DSP control, efficient cooling, and compact installation dimensions, the H2L Series provides a practical amplification solution for professional active loudspeaker systems.
Key Features
- High-efficiency Class-D amplifier technology
- Maximum output power up to 1,800W RMS
- Four models for full-range, subwoofer, and two-way speaker applications
- Integrated DSP processing
- USB and RS-485 control
- Compact plate design for convenient cabinet installation
- Efficient cooling system for reliable operation
- Multiple protection functions
- Three operating-voltage options
- Suitable for new active-speaker production and passive-speaker upgrades
Model Options
H2L
The H2L is a 2-channel plate amplifier designed for active full-range loudspeakers and other dual-channel speaker systems.
- 2 × 500W at 8Ω
- 2 × 900W at 4Ω
H2L-SUB8
The H2L-SUB8 is a high-power mono plate amplifier developed specifically for 8Ω subwoofer applications.
- 1 × 1,600W RMS at 8Ω
- 4Ω loads are not supported
H2L-SUB4
The H2L-SUB4 supports both 4Ω and 8Ω subwoofer loads, making it suitable for high-output active subwoofer systems.
- 1 × 900W RMS at 8Ω
- 1 × 1,800W RMS at 4Ω
H2L-TWO
The H2L-TWO provides two independent amplifier channels for two-way and bi-amplified active speaker systems.
- 2 × 500W at 8Ω
- 2 × 900W at 4Ω
Integrated DSP Processing
Every H2L Series module features an integrated DSP processor for professional loudspeaker management.
Available DSP functions include:
- Mute
- Polarity
- Gain
- Delay
- Limiter
- Equalizer
- Crossover
DSP parameters can be configured from a PC through USB or RS-485, allowing precise system adjustment for different drivers, cabinet designs, and sound reinforcement applications.
Flexible Operating-Voltage Options
The H2L Series is available with different power-supply versions for international markets:
- 110V version: 90–135V AC
- 220V version: 180–265V AC
- Optional PFC version: 90–265V AC
The optional wide-voltage PFC version is suitable for touring equipment, rental systems, and international markets where the mains voltage may vary.
Protection System
The integrated protection system helps ensure stable and reliable operation in demanding professional audio applications.
Protection functions include:
- Short-circuit protection
- DC protection
- Overvoltage protection
- Undervoltage protection
- Overcurrent protection
- Overtemperature protection
Applications
- Active full-range PA speakers
- Powered subwoofers
- Two-way active loudspeakers
- Bi-amplified speaker systems
- Active stage monitors
- Portable PA systems
- Professional audio rental systems
- Fixed sound installations
- Passive-speaker upgrade projects
- OEM and ODM loudspeaker manufacturing
Technical Specifications
| Item | H2L | H2L-SUB8 | H2L-SUB4 | H2L-TWO |
|---|---|---|---|---|
| 8Ω Stereo Power | 2 × 500W | — | — | 2 × 500W |
| 4Ω Stereo Power | 2 × 900W | — | — | 2 × 900W |
| 8Ω Bridged Power | — | 1 × 1,600W only | 1 × 900W | — |
| 4Ω Bridged Power | — | Not supported | 1 × 1,800W | — |
| Frequency Response | 20Hz–20kHz ±1dB | 20Hz–20kHz ±1dB | 20Hz–20kHz ±1dB | 20Hz–20kHz ±1dB |
| THD+N, 1kHz, 1W, 8Ω | <0.1% | <0.1% | <0.1% | <0.1% |
| Signal-to-Noise Ratio, 1kHz | >109dB | >109dB | >109dB | >109dB |
| Channel Separation, 1kHz | >70dB | >70dB | >70dB | >70dB |
| Amplifier Class | Class D | Class D | Class D | Class D |
| Protection | Short Circuit, DCP, OVP, UVP, OCP and OTP | Same | Same | Same |
| Operating Voltage | 110V: 90–135V / 220V: 180–265V / Optional PFC: 90–265V | Same | Same | Same |
| Input Sensitivity | 0.77V | 0.77V | 0.77V | 0.77V |
| Input Impedance | 20kΩ | 20kΩ | 20kΩ | 20kΩ |
| DSP Functions | Mute, Polarity, Gain, Delay, Limiter, EQ and Crossover | Same | Same | Same |
| DSP Control | USB and RS-485 | USB and RS-485 | USB and RS-485 | USB and RS-485 |
| Dimensions (W × H × D) | 312 × 190 × 88 mm | 312 × 190 × 88 mm | 312 × 190 × 88 mm | 312 × 190 × 88 mm |
| Packing Dimensions | 350 × 210 × 120 mm | 350 × 210 × 120 mm | 350 × 210 × 120 mm | 350 × 210 × 120 mm |
| Net Weight | 3.8 kg | 3.8 kg | 3.8 kg | 3.8 kg |
| Gross Weight | 4.8 kg | 4.8 kg | 4.8 kg | 4.8 kg |
Why Choose the H2L Series?
The H2L Series combines powerful Class-D amplification, integrated DSP processing, flexible voltage options, and multiple output configurations in one professional plate-amplifier platform.
Whether you are developing an active full-range speaker, a high-power subwoofer, or a two-way bi-amplified loudspeaker, the H2L Series offers a compact, efficient, and reliable solution for professional PA, rental, installation, and OEM/ODM applications.
