HA32K4 26800W 4-Channel Class D High Power Subwoofer Amplifier
Short Description
The HA32K4 is a professional 4-channel Class D high-power subwoofer amplifier designed for touring sound systems, outdoor events, clubs, large venues, and fixed installations. Delivering 4 × 3200W @ 8Ω, 4 × 5200W @ 4Ω, and 4 × 6700W @ 2Ω, it provides powerful low-frequency performance, high efficiency, and reliable long-term operation. With a worldwide 90V–260V PFC power supply, SiC MOSFET technology, and advanced protection design, the HA32K4 is built for demanding professional sound reinforcement applications.
Key Features
Massive 26,800W Output
The HA32K4 delivers up to 26,800W total output power, making it ideal for high-output subwoofer systems, large PA systems, touring racks, and multi-speaker configurations.
4-Channel High Power Design
With 4 channels of independent amplification, the HA32K4 allows flexible system configuration for subwoofers, full-range cabinets, or mixed speaker setups.
Class D High Efficiency
Advanced Class D amplifier technology provides high power density, low heat generation, reduced system weight, and efficient energy conversion for professional use.
SiC MOSFET Technology
Built with SiC MOSFET components, the HA32K4 delivers fast response, high efficiency, and stable performance under heavy-load conditions.
Long-Term 2.7Ω Load Stability
Engineered for stable long-term operation at 2.7Ω load, the HA32K4 is suitable for demanding subwoofer-driven systems and high-power live sound applications.
Universal PFC Power Supply
The built-in PFC power supply supports 90V–260V worldwide voltage, ensuring stable operation across different countries and power environments.
High Fidelity Sound Performance
The amplifier provides strong output power while maintaining clean, accurate, and high-fidelity sound reproduction for professional audio systems.
Reliable Protection System
Built-in protection includes under-voltage protection, DC protection, over-temperature protection, overload limiter, and short-circuit protection for safe operation.
Product Overview
The HA32K4 4-Channel Class D High Power Subwoofer Amplifier is designed for professional audio users who require extreme power, high efficiency, and dependable performance in one compact amplifier.
With output power of 4 × 3200W @ 8Ω, 4 × 5200W @ 4Ω, and 4 × 6700W @ 2Ω, the HA32K4 provides powerful driving capability for large subwoofer systems, line array systems, and high-SPL sound reinforcement projects.
Its advanced Class D circuit design offers excellent power efficiency and reduced heat generation, while the SiC MOSFET technology improves stability, response speed, and long-term reliability. The amplifier also supports 90V–260V worldwide voltage input with PFC, making it suitable for international touring, rental companies, and fixed installation projects.
Designed with a tunnel-through cooling system and full protection circuitry, the HA32K4 maintains reliable performance during long working hours and heavy-load operation. It is an ideal solution for professional applications where powerful bass, high efficiency, and system stability are required.
Key Advantages
Powerful Bass Performance
The HA32K4 is built to drive high-power subwoofer cabinets with deep, strong, and controlled low-frequency output.
High Power Density
Its compact rack-mount design delivers massive output power while saving rack space and reducing transportation weight.
Stable Heavy-Load Operation
Long-term 2.7Ω load stability makes the amplifier suitable for demanding sound systems and multi-cabinet configurations.
Worldwide Power Compatibility
The 90V–260V PFC power supply allows the amplifier to work reliably in different regions and voltage environments.
Easy System Integration
Balanced XLR inputs, Neutrik speakON outputs, and clear front-panel indicators make setup and operation simple for engineers and installers.
Application Scenarios
Live Sound & Touring Systems
Ideal for concerts, music festivals, outdoor events, and touring PA systems that require high output power and reliable bass performance.
Subwoofer Systems
Designed for professional subwoofer reinforcement, delivering strong low-frequency energy for large venues and high-SPL applications.
Fixed Installations
Suitable for theaters, clubs, auditoriums, houses of worship, stadiums, and performance venues that need stable long-term amplification.
Rental & Mobile Production
A strong choice for rental companies and mobile sound providers that need compact, powerful, and efficient amplifier solutions.
Line Array & Full-Range Speaker Systems
Can be used with line array systems, full-range speakers, and sub + full-range configurations for flexible sound system design.
Specifications
| Item | HA32K4 |
|---|---|
| 8Ω Stereo Power RMS | 3200W × 4 |
| 4Ω Stereo Power RMS | 5200W × 4 |
| 2Ω Stereo Power RMS | 6700W × 4 |
| 8Ω Bridged Power RMS | 10200W × 2 |
| 4Ω Bridged Power RMS | 13200W × 2 |
| Frequency Response | 20Hz–20kHz, 1W @ 8Ω, ±0.5dB |
| THD | <0.5% from 1W to full power, typical value <0.05% |
| Signal-to-Noise Ratio | >110dBA, 20Hz–20kHz, A-weighted |
| Gain / Sensitivity | 32dB, 35dB, 38dB, 41dB |
| Crosstalk | >66dB @ 1kHz |
| Slew Rate | 50V/μs @ 8Ω |
| Maximum Output Voltage / Current | 185V / 85A, 370V in bridge mode |
| Standby Power | 47W / 0.8A |
| Operating Temperature | 0°C–45°C / 32°F–113°F |
| Cooling System | Tunnel-through cooling system |
| Input Connectors | 3-pin XLR, electronically balanced |
| Output Connectors | Neutrik speakON |
| Protection | Under-voltage, DC, over-temperature, overload limiter, short-circuit protection |
| Operating Voltage | 90V–260V |
| Input Impedance | 10kΩ balanced |
| Damping Factor | ≥5000 |
| Dimensions | 490 × 50 × 482mm |
| Packing Dimension | 610 × 560 × 103mm |
| Net Weight | 12.5kg |
| Gross Weight | 16.5kg |
