Description
Description
The AudioCenter D4.4K-D is the Dante-enabled version of the four-channel D4.4K Class-D DSP amplifier. It combines medium- to high-output amplification, analog and AES digital inputs, Dante network audio, FIR and IIR processing, Ethernet control, delay, compression, and limiting in one professional 2U chassis.
The amplifier delivers 700 watts per channel into 8 ohms, 1,200 watts per channel into 4 ohms, or 2,400 watts per bridged pair into 8 ohms. Four analog, four AES, and four Dante input channels feed a 48 kHz/24-bit DSP with input and output equalization, matrix routing, crossover control, four channels of 2,048-tap FIR processing, and independent delay.
BrainCore NET provides centralized monitoring and configuration, while the front-panel display and USB-B port support local access. Class-D efficiency above 90 percent, front-to-back forced-air cooling, and comprehensive protection make the D4.4K-D suitable for networked installed sound, touring, rental, and multi-amplifier systems.
Power Specifications
| 8-Ohm Stereo Power | 700 watts × 4 |
|---|---|
| 4-Ohm Stereo Power | 1,200 watts × 4 |
| 8-Ohm Bridged Power | 2,400 watts × 2 |
| Output Topology | Class D |
| Efficiency | Greater than 90% |
| Frequency Response | 20 Hz–20 kHz, ±1 dB |
| Signal-to-Noise Ratio | At least 100 dB, A-weighted |
| Damping Factor | At least 400 at 1 kHz / 8 ohms |
| THD+N | 0.1% or less |
DSP, Dante, and Control
| DSP Resolution | 48 kHz / 24-bit |
|---|---|
| Analog Inputs | 4 |
| AES Digital Inputs | 4 |
| Dante Inputs | 4 |
| Input Processing | Noise gate, gain, sensitivity, phase, mute, 15-band EQ, HPF/LPF, and up to 90 ms delay per channel |
| Output Processing | 10-band EQ, HPF/LPF, up to 20 ms delay, compressor, limiter, gain, phase, and mute |
| Crossover Filters | Butterworth, Linkwitz-Riley, and Bessel; 6–48 dB/octave |
| FIR Processing | 4 × 2,048 taps |
| Operating Modes | Matrix, stereo, parallel, and bridge |
| Network Control | 2 × RJ45 with BrainCore NET support |
| USB Control | USB-B |
Connections and Physical Specifications
| Inputs | Male and female XLR |
|---|---|
| Speaker Outputs | Speakon |
| Input Sensitivity | 0, 6, or 12 dBu |
| Power Supply | 100–130 or 220–240 volts AC, 50/60 Hz |
| Power Consumption | 750 watts at 1/8 output power into 4 ohms |
| Cooling | Front-to-back forced-air cooling |
| Rack Height | 2U |
| Dimensions | 483 × 88 × 404 mm |
| Net Weight | 10 kg |
Features
- Four-channel Class-D amplification with integrated DSP
- Dante, AES, and analog input paths
- BrainCore NET centralized monitoring and control
- IIR and 4 × 2,048-tap FIR processing
- Input and output equalization, delay, compression, and limiting
- Matrix, stereo, parallel, and bridge modes
- DC, short-circuit, thermal, overload, soft-start, and limiter protection
- High-efficiency switching power supply
- Designed for professional networked audio systems