NST Audio D48X Matrix Signal Processor DSP Digital Speaker System Controller FOH

This item is being sold by Subtract Music. We are a Los Angeles based Danley Sound Labs dealer, sound rental and event production company. Specializing in high end audio gear, custom builds and installs. Our team has over 25 years of sales experience, and is here to answer any questions you may have.

For sale is a top of the line NST Audio D48x pro audio digital signal processor. These units retail new for $4,740. We upgraded to the larger DM88 unit, so this one is up for sale at a great deal. You can control levels, EQ, dynamic EQ and source switching all via iPad with their native Mac apps, or via Windows/Tablet. Truly one of the more flexible and best sounding processors on the market.

We are an authorized NST Audio dealer and have a lot of field experience with these processors. Please don't hesitate to reach out to us for any questions.

Unit has been recently serviced and bench tested. It has the latest firmware installed.

Analog 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

Analog 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 analog)
THD + N (+19dB @ 1kHz) : 0.00029%
Latency : 0.427ms (in to out, analog)

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

FIR Support: 2048 total taps
Presets : Up to 100

Comms
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

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

Weight
Net : 2.5kg
Shipping : 3.5kg