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Overview
D4.2K is a four-channel digital power amplifier that integrates Class D power amplification technology with high-precision DSP digital signal processing, enhancing audio performance and ease of operation. It comes with IIR filter, FIR filter, and optional Dante network functionality for precise audio tuning and optimization.
Users can configure and control the amplifier rapidly via the display and USB interface on the front panel and the Ethernet. Thanks to its exceptional performance and user-friendly software interface, the D Series amplifier is the perfect choice for professional audio systems.
Highlights
- Integrated Design and Performance Maximization
The D Series is a four-channel digital DSP power amplifier that combines Class D power amplification technology with high-precision DSP. It greatly satisfies the parameter and performance requirements of audio systems and maximizes the performance of the equipment itself. Additionally, it simplifies the tuning and management processes of audio systems, enhancing the ease of operation and efficiency.
- Intelligent Audio System Management
Remote Monitoring and Control
With the D Series amplifier, users can remotely monitor and control the status of audio equipment, adjust settings in real-time, greatly enhancing the convenience and efficiency of monitoring.
Centralized Management and Maintenance
By centrally managing the audio system over the network and carrying out software updates, parameter configurations, and maintenance tasks altogether, the efficiency of operational maintenance can be significantly enhanced.
Simplified Installation and Cost Reduction
Transmitting audio signals via the network reduces reliance on traditional audio wiring, simplifying the installation process and reducing construction costs and complexity.
- High-Efficiency Class D Power Amplifier
The D Series utilizes Class D amplification technology, with an efficiency exceeding 90%, which significantly reduces energy loss during power conversion. This not only decreases heat generation but also lowers energy consumption while maintaining excellent sound quality.
The D Series is capable of stable operation in high-temperature environments up to 60°C and as low as -20°C in low-temperature conditions, with very high reliability and durability.
- Superior Manufacturing Craftwork
High-efficiency switching power supply technology for optimized energy conversion and efficient use.
Comprehensive protection circuits ensure stable system operation and safety.
Compact size and light weight facilitate installation and deployment.
Modular design for easy maintenance and upgrades
Core Components
Specifications
Output power(1kHz, 20ms burst THD+N = 1%) | 8Ω Stereo | 4x300W | |
4Ω Stereo | 4x500W | ||
8Ω Bridge | 2x1000W | ||
Protection System | DC Protection,Short circuit protection,Smart overheat management,Overheat protection, Output overload protection,Soft startup protection,Limiter protection | ||
DSP processing | Sampling rate | 48kHz/24bit | |
Input | 1) Input: 4x analogue, 4x AES ,4x Dante 2) Noise Gate,gain,Sensitivity,Phase,Mute 3) Input EQ:15 band EQ + HPF/LPF (Butterworth, Linkwitz-Riley, Bessel:6 dB/oct to 48 dB/oct) 4) Input delay:Per channel 90ms | ||
Working mode | Matrix,Stereo,Parallel,Bridge | ||
FIR | 4 channel FIR 4×2048 Taps | ||
Output | 1) Output EQ:10 band EQ + HPF/LPF (Butterworth, Linkwitz-Riley, Bessel:6 dB/oct to 48 dB/oct) 2) Output delay:Per channel 20ms 3) compressor and limiter 4) Gain, Phase, Mute | ||
Analogue Input AES Input Dante Input | 4x analogue 4x AES 4x Dante | ||
USB control port | USB-B | ||
TCP/IP network control port | RJ45 x2 | ||
Input Connectors | Male XLR & Female XLR | ||
Output Connectors | Speakon | ||
Input Impedance | ≥20kΩ(Balanced);≥10kΩ(Unbalanced) | ||
Maximum input voltage | ≥18dBu | ||
Sensitivity | 0dBu/6dBu/12dBu | ||
Frequency response(1W 8Ω stereo) | 20Hz-20kHz(±1dB) | ||
Crosstalk(1kHz,Rated power 8Ω A weighted) | ≥60dB | ||
S/N Ratio(Rated power 8Ω, A weighted) | ≥100dB | ||
Damping Factor(1kHz & 8Ω) | ≥400 | ||
Intermodulation Distortion(60Hz:7kHz=4:1，half power) | ≤0.1% | ||
THD+N(1kHz，8Ω half power A weighted) | ≤0.1% | ||
Output circuitry | Class D | ||
Power Supply | 100-130V~/220-240V~(±10%,50/60Hz) | ||
Power consumption(1/8 output power 4Ω) | 375W | ||
Rack space | 2U | ||
Cooling | Front to back venting,mandatory cooling | ||
Dimension(W×H×D) | 483×88×404mm | ||
Net Weight | 8.5kg | ||
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D4.2K
Four-Channel Digital Power Amplifier with built-in DSP
D4.2K is a four-channel digital power amplifier that integrates Class D power amplification technology with high-precision DSP digital signal processing, enhancing audio performance and ease of operation.