H2650 2 × 700W 2-Channel Class D DSP Amplifier Module for Active Speakers
Product Overview
The H2650 is a compact two-channel Class D amplifier module designed for active PA speakers, powered loudspeaker cabinets, stage monitors, and professional sound reinforcement systems.
It integrates a Class D amplifier board, switching power supply, and DSP processing module into one lightweight unit. The H2650 delivers 2 × 650W at 8 ohms and 2 × 700W at 4 ohms, providing efficient and reliable power for professional active loudspeaker applications.
As part of the Haozhiseng Audio H2 Series, the H2650 combines higher output power with compact installation dimensions. The series includes the H2450, H2650, and H2800, allowing loudspeaker manufacturers to select a suitable power configuration for different drivers and cabinet designs.
Key Features
- Two-channel Class D amplifier module
- 2 × 650W output power at 8 ohms
- 2 × 700W output power at 4 ohms
- Integrated switching power supply and DSP processing
- USB and RS-485 DSP control
- Compact 332 × 160 × 100 mm installation dimensions
- Lightweight 2.75 kg construction
- High-efficiency cooling design
- High-pass filter and volume control
- Comprehensive amplifier protection system
- Suitable for a wide range of active loudspeaker cabinets
- Designed for professional PA, rental, installation, OEM, and ODM applications
Integrated DSP Processing
The H2650 is equipped with an integrated DSP module for precise loudspeaker tuning and system management. Users can connect the amplifier module to a computer through USB or RS-485 to configure the active speaker system.
Available DSP functions include:
- Mute
- Polarity
- Gain
- Delay
- Limiter
- Equalization
- Crossover
These functions allow the amplifier to be optimized for different loudspeaker drivers, cabinet designs, crossover configurations, and installation requirements.
Compact and Lightweight Design
With installation dimensions of 332 × 160 × 100 mm and a net weight of only 2.75 kg, the H2650 is suitable for compact powered loudspeaker cabinets where internal space and overall system weight are important.
Its integrated design simplifies installation by combining amplification, power conversion, and DSP processing in a single module.
Flexible Operating-Voltage Options
The H2650 is available with two power-supply versions for different international markets:
- 110V version: 90–135V AC
- 220V version: 180–265V AC
The extended operating ranges provide stable performance in regions where mains voltage may vary.
Protection and Reliability
The H2650 incorporates multiple protection functions to help maintain stable operation and protect the amplifier and connected loudspeaker components.
Protection functions include:
- Short-circuit protection
- DCP protection
- Overvoltage protection
- Undervoltage protection
- Overcurrent protection
- Overtemperature protection
Applications
- Active two-way PA speakers
- Powered full-range loudspeakers
- Active stage monitors
- Compact subwoofer and satellite systems
- Portable PA systems
- Fixed-installation loudspeakers
- Rental and touring audio equipment
- OEM and ODM powered speaker projects
Technical Specifications
| Item | Specification |
|---|---|
| Model | H2650 |
| Product Type | 2-Channel Class D DSP Amplifier Module |
| 8Ω Stereo Power | 2 × 650W |
| 4Ω Stereo Power | 2 × 700W |
| Frequency Response | 20Hz–20kHz ±1dB |
| THD+N, 1kHz, 1W, 8Ω | <0.1% |
| Signal-to-Noise Ratio, 1kHz | >100dB |
| Channel Separation, 1kHz | >80dB |
| Amplifier Class | Class D |
| Protection | Short, DCP, OVP, UVP, OCP, OTP |
| Operating Voltage | 110V version: 90–135V AC / 220V version: 180–265V AC |
| Input Sensitivity | 0.77V |
| Input Impedance | 20kΩ |
| DSP Functions | Mute, Polarity, Gain, Delay, Limiter, EQ, Crossover |
| DSP Control | USB and RS-485 |
| Dimensions (W × H × D) | 332 × 160 × 100 mm |
| Packing Dimensions | 370 × 225 × 170 mm |
| Net Weight | 2.75 kg |
| Gross Weight | 3.45 kg |
Why Choose the H2650?
The H2650 combines 2 × 700W output power, Class D efficiency, integrated DSP control, compact installation dimensions, and lightweight construction in one professional amplifier module.
It is a practical solution for powered PA speakers, stage monitors, installation loudspeakers, rental systems, and customized OEM or ODM active speaker projects.
