DF18K4 18000W 4-Channel Class D DSP Power Amplifier with Dante, FIR and Touchscreen

Quick Features

• Up to 18,000W total output power
• 4 × 1800W at 8Ω
• 4 × 2800W at 4Ω
• 4 × 4500W at 2Ω
• Professional 4-channel Class D amplifier
• Built-in DSP with 4 × 2048-tap FIR filters
• Dante network audio connectivity
• 4.3-inch IPS touch screen
• 90–265V AC PFC wide-voltage power supply
• USB and network control
• Compact 2U rack-mount design
• Comprehensive amplifier and loudspeaker protection

Product Overview

The DF18K4 is a high-output 4-channel Class D DSP power amplifier designed for professional sound reinforcement systems where high power, advanced processing, network connectivity, and efficient rack space are essential.

Delivering up to 18,000W of total output power, the DF18K4 provides 4 × 1800W at 8Ω, 4 × 2800W at 4Ω, and 4 × 4500W at 2Ω. Its high power density makes it suitable for driving professional line arrays, high-output subwoofers, stage monitors, and other demanding loudspeaker systems.

The DF18K4 combines powerful Class D amplification, advanced DSP processing, FIR filtering, Dante network audio, touch-screen operation, and a PFC wide-voltage power supply in one compact 2U amplifier.

High-Power Four-Channel Output

The DF18K4 provides powerful and stable output across 8Ω, 4Ω, and 2Ω loudspeaker loads. Its four independent output channels allow flexible system configurations for stereo, multi-way, monitor, line array, and subwoofer applications.

Bridge mode is also available for applications that require higher output power from fewer channels.

Built-In DSP and FIR Processing

The integrated DSP platform allows system processing and loudspeaker management to be handled directly inside the amplifier, reducing the need for an additional external DSP processor.

DSP functions include:

• PEQ
• FIR filter
• Crossover
• Limiter
• Delay
• Gain
• Polarity
• Mixer
• All-pass filter
• Mute
• Input and output routing
• Preset storage and recall

Each channel features a 2048-tap FIR filter, providing precise control for loudspeaker frequency and phase correction, system alignment, and advanced speaker tuning.

4.3-Inch IPS Touch Screen

The front-panel 4.3-inch IPS touch screen provides direct access to amplifier status, input and output levels, DSP parameters, routing, presets, temperature, network settings, and operating information.

Engineers can quickly monitor and adjust the amplifier without connecting an external computer, making system setup and operation more convenient.

Dante Network Audio

Integrated Dante connectivity allows digital audio signals to be transmitted and routed through a standard Ethernet network.

The DF18K4 can be integrated with Dante-enabled digital consoles, processors, computers, and other professional audio equipment. This helps simplify system wiring and provides flexible digital audio distribution for touring and fixed-installation systems.

USB and Network Control

The DF18K4 can be configured and monitored through professional PC control software. USB and network connections provide convenient access to DSP settings, channel routing, presets, FIR filters, limiters, delay, EQ, and system monitoring.

90–265V PFC Wide-Voltage Power Supply

The built-in PFC power supply supports a wide operating voltage range of 90–265V AC, making the DF18K4 suitable for international touring, rental applications, and installations in regions with different or unstable voltage conditions.

PFC technology improves power utilization and helps the amplifier maintain stable performance under demanding operating conditions.

Professional Protection

The DF18K4 includes comprehensive protection functions to help protect both the amplifier and connected loudspeakers.

Protection functions include:

• Over-voltage protection
• Under-voltage protection
• Over-current protection
• Short-circuit protection
• DC protection
• Overload protection
• Thermal protection

Why Choose the DF18K4?

The DF18K4 combines high output power, advanced processing, and flexible network control in one professional amplifier.

• Up to 18,000W total output power
• Stable operation at 2Ω, 4Ω, and 8Ω
• Built-in DSP with 4 × 2048-tap FIR filters
• Dante network audio connectivity
• 4.3-inch IPS touch-screen control
• 90–265V PFC wide-voltage power supply
• Compact 2U rack design
• Comprehensive protection functions

It is an ideal choice for professional line arrays, subwoofers, touring systems, rental applications, and fixed installations.

Applications

• Professional line array systems
• High-output subwoofer systems
• Concerts and live performances
• Touring sound systems
• Rental and production companies
• Clubs and entertainment venues
• Theatres and houses of worship
• Stadiums and outdoor events
• Fixed professional audio installations

Specifications