H3 1800W + 900W + 900W 3-Channel Class-D DSP Amplifier Module for Active Speakers
Product Overview
The Haozhiseng Audio H3 is a high-power, three-channel Class-D amplifier module designed for active three-way loudspeakers, line array systems and professional touring sound applications.
It integrates a Class-D amplifier board, switching-mode power supply and advanced DSP processing in one compact module. At 4Ω, the H3 delivers 1800W for the low-frequency channel and 900W each for the mid- and high-frequency channels.
The integrated DSP provides precise control over gain, polarity, delay, limiting, mixing, equalization and crossover settings. Users can configure and manage the system from a PC through USB or RS-485.
Its compact installation dimensions, powerful output and flexible voltage options make the H3 suitable for both portable and permanently installed professional audio systems.
Key Features
- Three-channel Class-D DSP amplifier module
- 4Ω output: 1800W + 900W + 900W
- 8Ω output: 1500W + 500W + 500W
- Integrated Class-D amplifier, switching power supply and DSP
- High output power in a compact plate-amplifier design
- DSP control through USB and RS-485
- Adjustable gain, polarity, delay, limiter, mixer, EQ and crossover
- Multiple protection circuits for reliable operation
- Suitable for three-way active speakers and line array systems
- Ideal for subwoofer and top-speaker combinations
- Multiple operating-voltage versions for international markets
Integrated DSP Processing
The H3 incorporates a versatile DSP module for professional PA system configuration and loudspeaker optimization.
Available DSP functions include:
- Mute
- Polarity
- Gain
- Delay
- Limiter
- Mixer
- Equalizer
- Crossover
The DSP can be controlled from a PC through a USB or RS-485 connection, allowing installers and system engineers to adjust the amplifier for different loudspeakers, venues and system configurations.
Flexible Operating-Voltage Options
The H3 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 recommended for touring systems, rental equipment and export markets where mains voltage may fluctuate.
Applications
- Three-way active loudspeakers
- Active line array systems
- Professional touring sound systems
- Subwoofer and dual top-speaker systems
- Mobile DJ systems
- Live performance systems
- Rental audio equipment
- Clubs and entertainment venues
- Houses of worship
- Fixed PA installations
- OEM and ODM active-speaker projects
Technical Specifications
| Item | Specification |
|---|---|
| Model | H3 |
| Amplifier Type | 3-Channel Class-D DSP Amplifier Module |
| 8Ω Output Power | L: 1500W + M: 500W + H: 500W |
| 4Ω Output Power | L: 1800W + M: 900W + H: 900W |
| Frequency Response | 20Hz–20kHz ±1dB |
| THD+N at 1kHz, 1W, 8Ω | <0.1% |
| Signal-to-Noise Ratio at 1kHz | >100dB |
| Channel Separation at 1kHz | >80dB |
| Amplifier Class | Class D |
| Protection | Short Circuit, DCP, OVP, UVP, OCP and OTP |
| Operating Voltage | 110V version: 90–135V AC / 220V version: 180–265V AC |
| Optional PFC Operating Voltage | 90–265V AC |
| Input Sensitivity | 1V |
| Input Impedance | 20kΩ |
| DSP Functions | Mute, Polarity, Gain, Delay, Limiter, Mixer, EQ and Crossover |
| DSP Control | USB and RS-485 |
| Dimensions (W × H × D) | 312 × 190 × 120mm |
| Packing Dimensions | 350 × 210 × 150mm |
| Net Weight | 4.9kg |
| Gross Weight | 5.9kg |
Why Choose the H3?
The H3 combines three-channel high-power amplification, DSP processing and a switching-mode power supply in one compact plate-amplifier module.
Its dedicated low-, mid- and high-frequency outputs simplify the construction of active three-way speaker systems. For suitable system configurations, the H3 can also be installed in a subwoofer to power the subwoofer channel and external top speakers.
With USB and RS-485 DSP control, comprehensive protection and flexible operating-voltage options, the H3 is a practical solution for speaker manufacturers, rental companies, system integrators and professional audio installations.
Frequently Asked Questions
Are the required cables included?
Yes. Each H3 plate amplifier is supplied with a power cable and a compatible data-control cable.
Can the H3 power two 350W top speakers and one 1500W subwoofer?
Yes, subject to the correct loudspeaker impedance and system wiring. At 8Ω, the H3 provides one 1500W low-frequency channel and two 500W output channels.
The module can be installed in the subwoofer, with the 1500W channel powering the subwoofer and the two 500W channels powering the two top speakers. DSP crossover, gain and limiter settings should be configured according to the power rating and impedance of each loudspeaker.
