D48S Matrix Signal Processor

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Based on the same great analogue design as our D48 matrix processor but with a brand new DSP engine, the D48S adds a range of new audio tools to your system.

D48S Overview

With inputs and outputs switchable in channel pairs between analogue or AES/EBU the D48S 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. Also new is our Predictive eXcursion Limiter (PXL) algorithm 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.

Click for specifications

D48S 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 96kHz
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 (20Hz to 20kHz) : +/-0.4dB
Dynamic Range : >115dB unweighted (in to out analogue)
THD + N (+10dB @ 1kHz) : 0.0013%
Latency : 1.278ms (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

Comms

100Mbps Ethernet on rear panel (Ethercon connector)
USB Type B socket

Power Requirements

3-pin IEC input, fused
90-250VAC, 50-60Hz < 40W

Dimensions

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

Weight

Net : 2.8kg
Shipping : 3.9kg

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

Images

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Software

The latest firmware, for NST Audio devices, is included as part of the D-Net software, that can be downloaded from the D-Net page:

   Download D-Net Software