VMX88 Audio Installation Processor

Finally, install gets the audio quality it deserves. Designed using the latest generation of NST DSP technology, VMX88 brings no-compromise audio performance and powerful system control to Dante-networked audio installations.


VMX88 delivers all the benefits and experience of our live sound filters and dynamics algorithms in an installation product. The 8 analogue inputs have individual compressors, as well as a 24dB/Oct high pass filter, 8 bands of parametric EQ and up to 1.3 seconds of delay. The full matrix mixer allows mixing of not just the analogue inputs but also 8 channels of Dante networked inputs to any output channel. Audio channels can be routed to the 8 channels of Dante network outputs from multiple stages in the audio chain to give flexibility in system design.

All of the 8 analogue outputs have 16 bands of parametric EQ, 48dB/Oct high and low pass filters, up to 1.3 seconds of delay as well as our high performance, two-stage PXL limiters for high performance loudspeaker protection.

All analogue audio connections are on Phoenix-type 3-pin 5.08mm pitch connectors. The 4 GPI connections allow configurable actions such as fire alarm mutes and preset recalls. Up to 30 presets can be stored with recall options allowing selective recall combinations of input, matrix and output sections.

Our D-Net control software for PC, Mac and iPad gives you complete control over ethernet and wifi. The VMX88 is also fully compatible with our VR1 PoE remote control panel for simple, flexible user control. Control via third party systems such as Crestron™ is available via our simple ethernet control protocol.

VMX88 technische specificaties

Analogue Inputs – 8

Electronically Balanced, Phoenix connectors
CMRR : >70dB @ 1kHz Maximum Level >20dBu
Dynamic Range >120dB (20Hz – 20kHz A-weighted)
Input Impedance : 10kΩ Balanced

Analogue Outputs – 8

Electronically Balanced, Phoenix connectors
Maximum Level >20dBu
Dynamic Range >119dB (20Hz – 20kHz A-weighted)
Source Impedance : <60Ω


Frequency Response (20Hz to 20kHz) : +/-0.05dB
THD + N (-10dB @ 1kHz) : 0.001%
Latency : 0.427ms (in to out, analogue at 96kHz)

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 Dynamic EQ (per channel) : 2 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: Full matrix mixer including all local and Dante inputs to local outputs

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

Networked Audio : 8in / 8out Dante channels on dual redundant RJ45 connectors

Comms : 100Mbps Ethernet on rear panel (RJ45 connector)

Power Requirements

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


Height : 44mm (1.75inch) 1U
Depth : 170mm (6.75 inches)
Width : 482mm (19 inches)


Net : 2.2kg
Shipping : 3.4kg

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