DP Series Class TD 4-Channel DSP Power Amplifier: High-Power Digital Amplification for Professional Sound Systems

  • Buying Guide
Posted by Fedaxy On Jun 11 2026

DP Series Class TD 4-Channel DSP Power Amplifier for Professional Audio Applications

In today's professional audio industry, system integrators, rental companies, distributors, and venue operators require amplifiers that deliver high output power, reliability, and intelligent system control. The DP Series Class TD 4-Channel DSP Power Amplifier is designed to meet these requirements, providing exceptional performance in a compact 1U rack-mount chassis.

Manufactured by Guangzhou Fedaxy Audio Equipment Co., Ltd., a professional amplifier manufacturer with over 10 years of industry experience, the DP Series combines advanced Class TD amplification technology with integrated DSP processing to support modern sound reinforcement systems worldwide.

Multiple Power Options for Diverse Projects

The DP Series offers multiple power configurations to accommodate different installation and touring requirements:

Model 8Ω Stereo Power 4Ω Stereo Power 2Ω Stereo Power
DP4400 4×400W 4×600W 4×1000W
DP4600 4×600W 4×900W 4×1500W
DP4800 4×800W 4×1200W 4×2000W
DP41000 4×1000W 4×1500W 4×2500W
DP41300 4×1300W 4×1950W 4×3250W
DP41500 4×1500W 4×2250W 4×3750W

This wide range allows audio professionals to select the ideal amplifier for loudspeaker systems in venues of all sizes.

Advanced Class TD Amplification Technology

The DP Series utilizes advanced Class TD circuit architecture to deliver:

  • High efficiency with reduced heat generation
  • Strong low-frequency response
  • Clear and detailed high-frequency reproduction
  • Excellent power-to-size ratio
  • Stable operation under demanding conditions

The design incorporates high-capacity power supplies and premium amplifier modules to ensure consistent output and dependable performance.

Integrated DSP Processing for System Optimization

Modern sound systems require precise tuning and management. The built-in DSP platform provides enhanced control and flexibility, enabling audio engineers to optimize loudspeaker performance and protect system components.

Benefits include:

  • Improved system management
  • Simplified signal processing
  • Better audio consistency
  • Easier deployment for complex installations

The amplifier also supports digital management functionality for efficient multi-unit integration.

Professional Audio Performance Specifications

Key technical specifications include:

  • Frequency Response: 20Hz – 20kHz (±0.5dB)
  • THD: < 0.05%
  • Signal-to-Noise Ratio: >110dB
  • Damping Factor: >500
  • Crosstalk: >35dB
  • Slew Rate: 20V/μs
  • Input Sensitivity: 0.775V / 1V / 1.4V

These specifications ensure clean, accurate, and dynamic audio reproduction across a wide range of professional applications.

Comprehensive Protection System

Reliability is essential in professional environments. The DP Series incorporates multiple protection mechanisms, including:

  • Power-on soft start protection
  • Overheating protection
  • Overload protection
  • Short-circuit protection
  • Output DC protection

These intelligent safeguards help maximize amplifier lifespan and ensure uninterrupted operation during critical performances.

Intelligent Cooling System

The amplifier features an intelligent four-fan cooling architecture with front-to-back airflow design. This efficient thermal management system maintains stable operating temperatures even during extended high-power operation.

Compact 1U Design for Maximum Efficiency

Despite its powerful output capabilities, the DP Series utilizes a space-saving 1U rack-mount chassis. This design provides:

  • Reduced rack space requirements
  • Easier transportation for touring applications
  • Lower installation costs
  • Higher equipment density in professional racks

Ideal Applications

The DP Series is designed for a broad range of professional audio environments, including:

Stadiums and Sports Venues

High-output multi-channel amplification supports large-scale sound reinforcement systems.

Concert Touring and Live Events

Compact size and powerful performance make it an excellent solution for rental companies and touring professionals.

Bars and Nightclubs

Delivers impactful low-frequency performance and clear vocal reproduction.

Cinemas and Theaters

Provides accurate sound reproduction and dependable operation for immersive audio experiences.

Conference and Multi-Purpose Venues

Offers flexible system integration and efficient DSP control for commercial installations.

Why Choose Fedaxy Audio?

As a professional manufacturer specializing in power amplifiers, Fedaxy Audio combines:

  • More than 10 years of industry experience
  • ISO 9001 quality management standards
  • CE, RoHS, and CB certifications
  • OEM & ODM manufacturing capabilities
  • Global export experience in over 100 countries and regions

Fedaxy continues to provide reliable amplification solutions for distributors, system integrators, rental companies, and audio professionals worldwide.

Conclusion

The DP Series Class TD 4-Channel DSP Power Amplifier represents an ideal combination of power, efficiency, DSP functionality, and reliability. With models ranging from 4×400W to 4×1500W, comprehensive protection systems, intelligent cooling, and compact 1U construction, it is a powerful solution for modern professional audio systems.

Whether for fixed installations, live sound reinforcement, touring productions, or commercial venues, the DP Series delivers the performance and dependability that professional audio applications demand.

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