H2S Series 2-Channel Class-D DSP Plate Amplifier Module – Up to 2 × 900W
Product Overview
The H2S Series is a compact Class-D DSP plate amplifier solution designed for active PA speakers, powered subwoofers, two-way loudspeakers, and passive-speaker upgrade projects.
The series combines a high-efficiency Class-D amplifier, switch-mode power supply, and professional DSP processing in one compact module. Four configurations are available for different loudspeaker designs:
- H2S: 2-channel full-range amplifier
- H2S-SUB8: High-power mono subwoofer amplifier for 8Ω loads
- H2S-SUB4: High-power mono subwoofer amplifier for 4Ω or 8Ω loads
- H2S-TWO: 2-channel amplifier for bi-amplified speaker systems
The compact 312 × 140 × 125 mm installation dimensions make the H2S Series suitable for small and medium-sized active speaker cabinets. USB and RS-485 connectivity allows convenient DSP configuration and system management from a PC.
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 and system protection
- Compact plate design for easy cabinet installation
- Lightweight construction with a net weight of 3.6 kg
- Efficient cooling system for stable operation
- USB and RS-485 DSP control
- Multiple operating-voltage options
- Suitable for new active-speaker production and passive-speaker upgrades
Four Models for Different Speaker Applications
H2S
The H2S is a 2-channel full-range amplifier delivering 2 × 500W at 8Ω or 2 × 900W at 4Ω. It is suitable for active full-range PA speakers and other dual-channel loudspeaker systems.
H2S-SUB8
The H2S-SUB8 is designed specifically for 8Ω subwoofer loads and delivers up to 1 × 1,600W RMS at 8Ω.
H2S-SUB4
The H2S-SUB4 supports both 4Ω and 8Ω subwoofer loads. It delivers 1 × 900W at 8Ω or up to 1 × 1,800W at 4Ω.
H2S-TWO
The H2S-TWO provides two independent amplifier channels for bi-amplified and two-way active speaker systems. It delivers 2 × 500W at 8Ω or 2 × 900W at 4Ω.
Integrated DSP Processing
Each H2S Series module features an integrated DSP system for professional loudspeaker management. The available processing 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 tuning for different speaker drivers, cabinet designs, and applications.
Flexible Operating-Voltage Options
The H2S 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 systems, rental equipment, and export markets where the mains voltage may vary.
Applications
- Active full-range PA speakers
- Powered subwoofers
- Two-way active loudspeakers
- Bi-amplified speaker systems
- Stage monitor speakers
- Portable PA systems
- Professional audio rental systems
- Fixed sound installations
- Passive-speaker upgrade projects
- OEM and ODM active-speaker manufacturing
Technical Specifications
| Item | H2S | H2S-SUB8 | H2S-SUB4 | H2S-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 | Short Circuit, DCP, OVP, UVP, OCP and OTP | Short Circuit, DCP, OVP, UVP, OCP and OTP | Short Circuit, DCP, OVP, UVP, OCP and OTP |
| 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 × 140 × 125 mm | 312 × 140 × 125 mm | 312 × 140 × 125 mm | 312 × 140 × 125 mm |
| Packing Dimensions | 350 × 170 × 160 mm | 350 × 170 × 160 mm | 350 × 170 × 160 mm | 350 × 170 × 160 mm |
| Net Weight | 3.6 kg | 3.6 kg | 3.6 kg | 3.6 kg |
| Gross Weight | 4.6 kg | 4.6 kg | 4.6 kg | 4.6 kg |
Why Choose the H2S Series?
The H2S Series combines powerful Class-D amplification, professional DSP processing, compact installation dimensions, and flexible model options in one integrated plate amplifier platform.
Whether you are developing an active full-range speaker, a high-power subwoofer, or a two-way bi-amplified loudspeaker, the H2S Series provides a practical and efficient solution for professional PA, rental, installation, and OEM/ODM applications.
