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DSPPA WH-706 - User Manual

DSPPA WH-706
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Specification：
Model
WH-706
WH-712
Type
Five Gear Volume Control
Rated Power
60W
120W
Override Signal
24V DC 10mA
Gear Output (Input
1KHZ/100V,Load=82Ω,distortio
n degree<1%)
STEP：0V（off）
STEP1：13(±2)V
STEP2：26(±2)V
STEP3：51(±2)V
STEP4: 100V
Gear Freq. Response (normal
operating conditions ( -3DB))
STEP1：70Hz～18kHz
STEP2：70Hz～18kHz
STEP3：70Hz～18kHz
Input DC24V override signal
output (position switch can be
placed at any location)
100V（Input 1KHZ/100V,Load=82Ω,distortion<1%）
Guangzhou DSPPA Audio Co., Ltd.
_60W High-Power Volume Controller WH-706
120W High-Power Volume Controller WH-712
User Manual
Product Description:
WH-706/WH-712 override volume controller is a high power volume controller with 24V
override function for audio conferencing system.
Features：
With override function, fire fighting linkage.
The power of the volume controller is 60W/120W。
5 gear volume adjustment.
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Overview

  1. Function Description
  2. Important Technical Specifications
  3. Usage Features
  4. Maintenance Features

The DSPPA WH-706/WH-712 is a high-power volume controller designed for audio conferencing systems, featuring a 24V override function.

Function Description

This device serves as a volume controller with a five-gear adjustment mechanism. Its primary function is to regulate the output volume of an audio system. A key feature is its override function, which allows for emergency signaling and fire fighting linkage, ensuring critical audio alerts can bypass normal volume settings. The device supports an input DC24V override signal, and its position switch can be placed at any location for flexible installation.

Important Technical Specifications

Model and Power:

  • WH-706: 60W High-Power Volume Controller
  • WH-712: 120W High-Power Volume Controller

Volume Control (Five Gear): (Input 1KHz/100V, Load=82Ω, distortion degree < 1%)

  • STEP (Off): 0V
  • STEP1: 13(±2)V
  • STEP2: 26(±2)V
  • STEP3: 51(±2)V
  • STEP4: 100V

Gear Frequency Response (Normal Operating Conditions (-3dB)):

  • STEP1: 70Hz ~ 18kHz
  • STEP2: 70Hz ~ 18kHz
  • STEP3: 70Hz ~ 18kHz

Override Signal:

  • Type: 24V DC 10mA
  • Output: 100V (Input 1KHz/100V, Load=82Ω, distortion < 1%)

Dimensions:

  • Front View: 86mm x 86mm (square faceplate)
  • Mounting Box Dimension: 83mm (width) x 80mm (height) x 45mm (depth)

Usage Features

Volume Adjustment: The device offers 5-gear volume adjustment, allowing users to precisely control the audio output level. The volume control knob is prominently located on the front panel for easy access.

Override Functionality: The integrated override function is crucial for safety and emergency scenarios. It enables fire fighting linkage, ensuring that emergency signals (HOT/COLD) can be transmitted effectively, overriding current volume settings. This feature is activated by a 24V override power input.

Connection Diagram: The connection interface includes terminals for:

  • HOT: Emergency signal (HOT)
  • COM: Emergency signal (COLD)
  • 24V: Override Power 24V
  • 0V: Override Power 0V
  • PA Network: Audio input/output
  • +SP / -SP: Speaker connections

Installation Flexibility: The device is designed for embedded installation. The input DC24V override signal output's position switch can be placed at any location, offering flexibility in system design. The installation process involves connecting audio input lines and speaker connectors to the back of the controller, securing it to an installation bottom box with screws, and then covering it with the panel.

Maintenance Features

Installation Steps and Precautions:

  1. Bottom Box Depth: When installing, ensure the depth of the bottom box is more than 50mm. Alternatively, an optional 86 sound control box provided by the manufacturer can be used.
  2. Pre-connection Setting: Before connecting the leader (audio input line and speaker connector) to the volume controller, it is critical to tune the volume knob to the smallest gear.
  3. Power-off Installation: The volume controller must be installed and connected without charging any of the machines to prevent damage or electrical hazards.
  4. Secure Mounting: The volume controller should be securely closed to the installation bottom box and fixed with screws to ensure stability and proper operation.
  5. Panel Alignment: After securing the unit, the volume controller cover (panel) should be carefully aligned and pressed hard to complete the installation, ensuring a neat and finished appearance.

These features collectively make the DSPPA WH-706/WH-712 a reliable and essential component for managing audio volume and emergency signaling in conferencing and public address systems.

DSPPA WH-706 Specifications

General IconGeneral
BrandDSPPA
ModelWH-706
CategoryController
LanguageEnglish