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D48X Matrix Signal Processor

Now in its third generation, the D48X enhances both audio performance and remote control flexibility, meaning your system sounds better and is easier to control.

D48X Overview

With inputs and outputs switchable in channel pairs between analogue or AES/EBU the D48X gives you the flexibility you need to integrate into your system.

Compressors are available on every input as well as a high pass filter, 8 bands of parametric EQ, a 28 band graphic EQ, 3 bands of dynamic EQ and up to 1.3 seconds of delay. Routing to outputs can be configured to either mix-matrix mode, free-routing or several pre-configured routing options. Flexible channel linking enables quick and easy configuration of common crossover setups or customised configurations as required.

Every output channel has high and low pass filters, 16 bands of parametric EQ and up to 1.3 seconds of delay. FIR filtering is also supported. Our Predictive eXcursion Limiter (PXL) algorithm, on every output, is designed to offer the best driver protection with the lowest distortion.

Front panel control allows instant mute of any input or output as well as editing of all the most commonly used parameters and recall of presets. Our D-Net Ethernet based control software for PC, Mac and iPad gives you the ability to not only control all the devices on a network but also to store preset memories and configure systems offline.

USB-C front panel connectivity with Ethernet bridging, means you can plug into any device and control the entire network. Additionally, a new Ethernet dual port switch in every unit means flexible connection options – either quick daisy chaining of devices or traditional star routing back to a dedicated external router/switch.

With enhanced audio performance thanks to the latest ESS AD/DA converter chipsets increasing the already impressive dynamic range and reducing THD+N figures, the D48X offers even more than ever before.

D48X Technical Specifications

Analogue Inputs – 4

Electronically balanced, pin 2 hot
CMRR : >60dB @ 1kHz
Maximum Level : >20dBu
Input Impedance : 10kΩ balanced

AES Inputs – 2 x 2 channel

Transformer balanced, pin 2 hot
AES Input Sample Rates : 8kHz to 192kHz
AES Input s/n Ratio : 139dB
Input Impedance : 110Ω

Analogue Outputs – 8

Electronically balanced, pin 2 hot
Maximum Level : >20dBu
Source Impedance : <60Ω AES Outputs – 4 x 2 channel Transformer balanced, pin 2 hot Sample Rate : same as operating sample rate Source Impedance : 110Ω Performance Frequency Response (12Hz to 32kHz) : +/-0.2dB Dynamic Range : >119dB ‘A’ weighted (in to out analogue)
THD + N (+19dB @ 1kHz) : 0.00029%
Latency : 0.427ms (in to out, analogue)

Processing [96kHz]

Input Gain (per channel) : -30 to +15dB in 0.1dB steps, mute, phase
Input Delay (per channel) : 0 to 1.3s in 10.4uS steps
Input Compressor (per channel) : Threshold (-30 to +22 dBu), Attack, Release, Ratio, Soft-Knee
Input Parametric EQ (per channel) : 8 bands – parametric, low shelf, high shelf, notch, band-pass
Input Graphic EQ (per channel) : 28 bands
Input Dynamic EQ (per channel) : 3 bands – parametric/low shelf/high shelf, boost/cut above/below, threshold, ratio, attack, release
Input High-Pass Filter (per channel) : Up to 24dB/octave (Bensen / Butterworth / Bessel / Linkwitz-Riley)

Routing Inputs to Outputs : Choice of modes (Matrix Mixer, Free Routing, 1×8 crossover, 2×4 crossover, 4×2 crossover, 2×3 crossover + 2 Aux)

Output Parametric EQ (per channel) : 16 bands – parametric, low shelf, high shelf, notch, band-pass
Output High-Pass and Low-Pass Filter (per channel) : Up to 48dB/octave (Bensen / Butterworth / Bessel / Linkwitz-Riley)
Output Gain (per channel) : -30 to +15dB in 0.1dB steps, mute, phase
Output Delay (per channel) : 0 to 1.3s in 10.4uS steps
Output Limiter (per channel) : Threshold (-50 to +22dBu), attack, release, auto attack/release option

Presets : Up to 30


2 x 1Gbps Ethernet on rear panel (Ethercon connector)
USB Type C socket

Power Requirements

3-pin IEC input, fused
90-250VAC, 50-60Hz < 20W


Height : 44mm (1.75inch) 1U
Depth : 213mm (8.4 inches)
Width : 482mm (19 inches)


Net : 2.5kg
Shipping : 3.5kg

Due to continuing product improvement the above specifications are subject to change.



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