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Netspire™ Network Audio Controller

NetSpire Network Audio Amplifier (NAC)

The NetSpire™ Network Audio Controller (NAC) is an intelligent, network enabled digital audio controller with integrated power amplifiers, digital signal processing, digital voice announcement, analogue input and output and digital I/O control signals. The device supports a large number of integrated functions greating reducing installation cost and system footprint.

 

Features

Block Diagram

  • Four network digital audio inputs and outputs
  • Up-to eight Class D Amplifier output channels
  • Four balanced analogue audio inputs and outputs
  • Eight isolated digital inputs and outputs
  • Web configuration, diagnostics and logging
  • Integrated DSP processing
  • Integrated Digital Voice Announcement
  • Emergency Audio Ready (EN60849)

Example System Footprint Comparison

nac-rack-comparison-large 

Downloads

 

 

pdf NetSpire NAC Specification.pdf

Functions

ul check Supports software selectable gain for line and microphone analogue inputs

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Supports Phantom, Avionic and Electret microphone power
ul check Supports microphone capsule health monitoring using current sense technology
ul check Supports up-to 48kHz 24 bit PCM for network digital audio. Lower bit rate and compressed codecs are also supported
ul check Supports up-to eight channels of 100V Audio, Low impedance Audio and Loop Current Amplifier modules
ul check Supports speaker bus health monitoring and can detect and reports a fault in a single speaker on a bus

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Supports audio frequency inductive loop health monitoring and fault reporting
ul check Supports eight isolated digital outputs under software control
ul check Supports eight isolated digital inputs which can be configured to change audio routes or initiate recorded announcements. Can be paired with microphone inputs for "push-to-talk" applications.
ul check Supports ambient noise compensation (ANC)
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Supports extensive DSP capabilities on each channel, including per channel gain, delay, power limiting, dynamic range compression and parametric equalisation.

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Supports pre-recorded Digital Voice Announcement (DVA) functions with flash storage for over 90 minutes of recorded announcements and 3000 individual announcement segments stored in the voice dictionary.

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Supports internal clock for scheduling announcements or background music. Synchronisation of clock using NTP.

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Supports in-built attention, test and alarm tones

ul check Supports network configuration and monitoring via a standard web browser, or the NetSpire suite of administration, monitoring and control software.

Product Photos

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