HA2506 6-Channel Class-D Power Amplifier — 6 × 450W at 4Ω, Compact 1U Design
The Haozhiseng Audio HA2506 is a 6-channel Class-D power amplifier designed for professional sound reinforcement, karaoke venues, and commercial audio installations. Delivering 6 × 250W at 8Ω or 6 × 450W at 4Ω, it provides flexible multi-channel amplification in a compact 1U rackmount chassis.
Weighing just 4.8 kg, the HA2506 is convenient for portable racks and installations where space is limited. A regulated switch-mode power supply, copper heat sink, and efficient cooling system support dependable operation, while integrated protection helps safeguard the amplifier and connected loudspeakers.
Key Features
- Six amplification channels: Powers multiple loudspeaker circuits from one compact unit.
- Flexible output power: 6 × 250W at 8Ω, 6 × 450W at 4Ω, or 3 × 800W bridged at 8Ω.
- High-efficiency Class-D design: Helps reduce heat generation and power consumption.
- Slim 1U chassis: Saves rack space in professional audio installations.
- Lightweight construction: A net weight of 4.8 kg simplifies transport and installation.
- Efficient cooling: Copper heat sink and cooling system help dissipate heat.
- Regulated switch-mode power supply: Supports consistent amplifier operation.
- Low-distortion audio: THD+N below 0.1% at 1 kHz, 1W into 8Ω.
- Comprehensive protection: Short-circuit, DC, overvoltage, undervoltage, overcurrent, and overtemperature protection.
Six Channels in a Compact Rackmount Design
The HA2506 combines six amplification channels in a chassis measuring 483 × 44 × 325 mm. Its compact format helps installers organize systems with multiple loudspeaker groups while keeping rack space requirements low.
For installations using external audio routing and processing, the HA2506 can provide amplification for different rooms or listening areas, making it suitable for multi-zone background music and PA systems.
Flexible Power for Professional Audio
The HA2506 offers three output configurations to suit compatible loudspeaker loads:
| Operating Configuration | Output Power |
|---|---|
| 8Ω per channel | 6 × 250W |
| 4Ω per channel | 6 × 450W |
| 8Ω bridged | 3 × 800W |
Bridged operation combines channel pairs to provide higher output for suitable applications. Configure speaker wiring and operating mode according to the amplifier’s instructions.
Clear Reproduction of Speech and Music
With a 20 Hz–20 kHz frequency response within ±1 dB, the HA2506 supports balanced reproduction across the audio range. Its signal-to-noise ratio exceeds 109 dB at 1 kHz, while channel separation above 70 dB at 1 kHz helps minimize crosstalk between channels.
These characteristics make it a practical choice for presentations, background music, karaoke, and general sound reinforcement.
Efficient Cooling and Integrated Protection
The Class-D output stage and regulated switch-mode power supply provide efficient amplification in a lightweight enclosure. A copper heat sink and cooling system help manage operating temperatures.
Built-in protection covers short circuits, DC faults, overvoltage, undervoltage, excessive current, and overheating, helping protect the system under abnormal operating conditions.
Voltage Options
The HA2506 is available in two separate voltage versions:
- 110V version: Operating range of 90–135V AC
- 220V version: Operating range of 180–265V AC
Specify the appropriate version for your local power supply when ordering.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HA2506 |
| Brand | Haozhiseng Audio |
| Product Type | 6-Channel Professional Power Amplifier |
| Amplifier Class | Class D |
| Number of Channels | 6 |
| Output Power at 8Ω | 6 × 250W |
| Output Power at 4Ω | 6 × 450W |
| Bridged Output Power at 8Ω | 3 × 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 |
| Power Supply | Regulated Switch-Mode Power Supply |
| 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 | 4.8 kg |
| Gross Weight | 5.9 kg |
Applications
- Churches and worship venues
- Museums and exhibition spaces
- Conference rooms and lecture theatres
- Theatres and auditoriums
- Shopping malls and transport terminals
- Bars, restaurants, and karaoke venues
- Multi-zone background music and PA systems
Why Choose the HA2506?
The Haozhiseng Audio HA2506 combines six-channel flexibility, efficient Class-D amplification, and a lightweight 1U design for installations that need multiple outputs without bulky amplifier racks.
Its output options accommodate different loudspeaker configurations, while low distortion and strong channel separation support clear audio. Copper heat dissipation, a regulated power supply, and integrated protection complete a practical amplifier solution for commercial venues and professional audio systems.
Contact Haozhiseng Audio for pricing, system configuration support, and OEM/ODM inquiries.
Website: www.hzsaudio.com
