HA2508 8-Channel Class-D Power Amplifier for Professional Audio Systems
The Haozhiseng Audio HA2508 is a compact 8-channel Class-D power amplifier designed for professional installations, multi-zone audio systems, and compact PA applications. Delivering 8 × 250W at 8Ω or 8 × 450W at 4Ω, it combines flexible multi-channel amplification with a space-saving 1U rackmount design.
With low distortion, a frequency response of 20 Hz–20 kHz (±1 dB), and a signal-to-noise ratio exceeding 109 dB, the HA2508 supports clear speech and music reproduction. Its efficient Class-D architecture, integrated protection, and 5.6 kg net weight make it a practical solution for both fixed installations and portable equipment racks.
Key Features
- 8-channel output: Powers multiple loudspeaker circuits from one compact amplifier.
- Flexible power configurations: 8 × 250W at 8Ω, 8 × 450W at 4Ω, or 4 × 800W bridged at 8Ω.
- High-efficiency Class-D amplification: Helps reduce heat generation and power consumption.
- Compact 1U rackmount chassis: Saves space in professional audio racks.
- Low distortion: THD+N below 0.1% at 1 kHz, 1W into 8Ω.
- Clear audio performance: Signal-to-noise ratio above 109 dB at 1 kHz.
- Integrated protection: Short-circuit, DC, overvoltage, undervoltage, overcurrent, and overtemperature protection.
- Separate voltage options: Available in 110V or 220V versions.
Eight Channels in a Space-Saving 1U Design
The HA2508 provides eight amplification channels in a chassis measuring 483 × 44 × 325 mm. This compact format helps installers organize multi-channel systems while keeping rack space requirements low.
It is suitable for powering separate loudspeaker groups in commercial venues, conference facilities, educational buildings, and other installations. When paired with suitable external routing and processing equipment, it can support multi-zone audio configurations.
Flexible Output for Different System Requirements
Choose the output configuration that matches your loudspeaker system:
| Operating Configuration | Output Power |
|---|---|
| 8Ω per channel | 8 × 250W |
| 4Ω per channel | 8 × 450W |
| 8Ω bridged | 4 × 800W |
Bridged operation provides higher output per channel pair for compatible loudspeaker loads. Follow the amplifier’s wiring instructions when configuring bridged outputs.
Clear Sound for Speech and Music
The HA2508 offers a 20 Hz–20 kHz frequency response within ±1 dB, supporting balanced reproduction across the audio range. Low distortion helps preserve signal clarity, while channel separation above 70 dB at 1 kHz helps limit crosstalk between channels.
These characteristics make it suitable for speech reinforcement, background music, and general professional audio applications.
Protection for Everyday Operation
Built-in protection functions monitor conditions that could affect the amplifier or connected equipment, including:
- Short circuits
- DC faults
- Overvoltage and undervoltage
- Excessive current
- Overtemperature
Together with its efficient Class-D design, these features support dependable operation in properly configured audio systems.
Voltage Options
The HA2508 is available in two separate power-supply versions:
- 110V version: Operating range of 90–135V AC
- 220V version: Operating range of 180–265V AC
Select the version that matches the local power supply when ordering. These are separate configurations, not a single universal-voltage model.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HA2508 |
| Brand | Haozhiseng Audio |
| Product Type | 8-Channel Professional Power Amplifier |
| Amplifier Class | Class D |
| Number of Channels | 8 |
| Output Power at 8Ω | 8 × 250W |
| Output Power at 4Ω | 8 × 450W |
| Bridged Output Power at 8Ω | 4 × 800W |
| Frequency Response | 20 Hz–20 kHz (±1 dB) |
| THD+N | <0.1% at 1 kHz, 1W, 8Ω |
| Signal-to-Noise Ratio | >109 dB at 1 kHz |
| Channel Separation | >70 dB at 1 kHz |
| Input Sensitivity | 0.77V |
| Input Impedance | 20 kΩ |
| Protection | Short Circuit, DC, Overvoltage, Undervoltage, Overcurrent, Overtemperature |
| Operating Voltage — 110V Version | 90–135V AC |
| Operating Voltage — 220V Version | 180–265V AC |
| Rack Height | 1U |
| Dimensions (W × H × D) | 483 × 44 × 325 mm |
| Packing Dimensions | 550 × 100 × 450 mm |
| Net Weight | 5.6 kg |
| Gross Weight | 6.7 kg |
Applications
- Commercial audio installations
- Multi-zone PA and background music systems
- Schools and educational facilities
- Conference rooms and public facilities
- Restaurants, bars, and retail spaces
- Churches and worship venues
- Compact professional PA systems
Why Choose the HA2508?
The Haozhiseng Audio HA2508 brings eight channels of amplification into a compact, lightweight unit, helping installers build organized audio systems without using excessive rack space.
More channels in less space: The 1U design is practical for installations with multiple loudspeaker circuits and limited rack capacity.
Flexible loudspeaker matching: Output options at 8Ω, 4Ω, and 8Ω bridged accommodate different system requirements.
Clear speech and music: Low distortion, wide frequency response, and strong channel separation support clean audio reproduction.
Built-in protection: Multiple protection functions help safeguard the amplifier and connected equipment.
Convenient handling: At just 5.6 kg, the HA2508 is easy to integrate into fixed installations and transportable racks.
Contact Haozhiseng Audio
Looking for a compact 8-channel amplifier for your next project? Contact Haozhiseng Audio for pricing, system configuration support, and OEM/ODM inquiries.
Website: www.hzsaudio.com
