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Power Amplifier

Overview

NV-P78500S zone amplifier is 2U, built-in a 500W digital amplifier and integrated to be 8 independent power zones. Install in broadcasting studio and control room, connect with Ethernet and network to share network audio, allow 4 channel local audio input(audio output can be set by software NV-76000ST). It is an ideal solution for PA system.

Specification

FEATURES

  • Support the speaker loop grounding, open circuit and short circuit detection.
  • Support the speaker loop cabling of 3 or 4 wire.
  • 8 Programmable trigger input interfaces.
  • 8 Programmable trigger output interfaces.
  • Support power amplifier enter power saving mode to save energy when no signal input.
  • Support the line redundant cabling.
  • Support and linkage fire alarm controller to achieve fire alarm linkage control.

FUNCTIONS

  • Built-in 500W digital amplifier and 8 power zone outputs, each zone has independent LED indicator, output control button and volume control.
  • With Network input, EVAC input, BGM input, local emergency mic input, mic input and 2 line inputs; user can set the priority of audio output through the NV-76000ST
  • Can work with an external backup amplifier, when the built-in amplifier faulted, it automatically switch to backup amplifier.
  • Automatic real-time monitor the operation of each zone speaker loop (Ground connection, open circuit, short circuit).
  • With 8 channels 'dry contact' input interfaces, can trigger pre-program edited voice messages to the designated zone or open the corresponding external power supply to achieve the corresponding event warning.
  • With 8 channels programmable relay signal output interfaces, can output short circuit no voltage control signal to the third party device to realize online automatic control.
  • Support 24V DC input interface (External connect with the 24V DC supplied by NV-76000BC)
SPECIFICATIONS  

Model

NV-P78500S

AC power

Voltage

~220-240V 50/60Hz

Maximum Current

3A (Exclude the 4 wire override output)

Fuse Size

250V/6..3A, Slow type

DC power

Voltage

24V DC, ±20%

Maximum current

27A (Exclude the 4 wire override output)

Power consumption

650W

Performance Index

Line Input

Distortion

<1% (Rated output power), 1KHz

Frequency

80Hz~20KHz

Sensitivity

775mV

Impedance

10KΩ

S/N Ratio

>70dB

Emergency Mic

Sensitivity

5mV

Impedance

600Ω

Contact Output

8 channels programmable relay output

Short Circuit, No voltage

8 channels programmable trigger input

8 Channels programmable trigger input

Level mode

Max 3.3V

Short circuit mode

No voltage, short circuit.

Cooling mode

Air-Cooled

Protection mode

Delay/Overheat/Short Circuit/Over Load

Machine Index

Installation

Desktop or 19 inch cabinet

Color

Black

Environment Requirements

Operation Temperature

+5? ~ +40?

Storage Temperature

-20? ~ +70?

Relative Temperature

<95% (No condensation)

Dimension

484×88×447 mm (19' width, 2U)

Weight

11.5 Kg

Ordering Information

Part Number Description Standard Quantity

NV-P78500S

8 Zones & Class D Power Amplifier

1

Downloads

Datasheet PDF 138.29KB DOWNLOAD

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Norden is one of its own kind manufacturer and supplier of the electrical and optical solutions of all kinds that have been tried and tested and cater to a wide spectrum of environments such as the telecommunications, buildings, utilities and industries, surveillance systems and Public Addressing Systems. The company provides some of the exemplary devices and solutions having the best modern technology as their working foundations.