EasyManua.ls Logo

QSC ISA 750 User Manual

QSC ISA 750
40 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
User Manual
ISA Audio Power Amplifiers
ISA Series
Installed
Sound
Amplifiers
TD-000093-00 rev.C
*TD-000093-00*
n ISA 300T
n ISA 500T
n ISA 800T
n ISA 280
n ISA 450
n ISA 750

Other manuals for QSC ISA 750

Question and Answer IconNeed help?

Do you have a question about the QSC ISA 750 and is the answer not in the manual?

QSC ISA 750 Specifications

General IconGeneral
BrandQSC
ModelISA 750
CategoryAmplifier
LanguageEnglish

Summary

Introduction to QSC ISA Amplifiers

Front Panel Illustration

Overview of the amplifier's front panel controls and indicators.

Rear Panel Illustrations

Diagrams showing rear panel connectors and controls for different models.

Features and Setup Guide

Power Switch and Cooling Air Vents

Details on the power switch operation, LED indicators, and cooling fan system.

LED Indicators Explained

Explanation of the Power, Signal, and Clip LED indicators and their meanings.

Gain Controls and Input Jacks

Description of rear-mounted gain controls and input connector types (XLR, Terminal Block).

DataPort V2 Connector Usage

Information on the DataPort V2 for accessory connection and daisy-chaining audio signals.

Stereo and Parallel Operating Modes

How to configure and use Stereo and Parallel operating modes for signal distribution.

Mode DIP Switch Settings

Instructions for setting DIP switches for Stereo and Parallel modes.

Bridge Mode and DIP Switch Settings

Instructions for configuring Bridge Mono mode and its associated DIP switches.

Low Frequency Filter Settings

Details on selecting and enabling low-frequency filters for speaker protection.

Frequency Response Curves

Graphs illustrating frequency response with different filter settings for various models.

Clip Limiter Settings

Explanation of the clip limiter function and DIP switch settings for overload protection.

Installation Procedures

Rack Mounting and Dimensions

Guidance on securing the amplifier in a rack, including dimensions and mounting methods.

Cooling Requirements and AC Mains

Information on proper airflow, vent clearance, and AC power connection requirements.

Connections Guide

XLR and Terminal Block Inputs

Details on using balanced and unbalanced inputs via XLR and terminal blocks.

DataPort V2 Input

Instructions for connecting to the DataPort V2 for input signals and monitoring.

Output Screw Terminal Connections

How to use the screw terminal outputs, including recommended terminal sizes.

Direct Low Impedance Outputs (LO-Z)

Connecting to LO-Z outputs for 2-16 ohm loads in Stereo, Parallel, and Bridge modes.

Distributed High Impedance Outputs (HI-Z), Stereo & Parallel

Connecting to HI-Z outputs for 25V, 70V, 100V in Stereo/Parallel modes.

Distributed High Impedance Outputs (HI-Z), Bridge Mode

Connecting to HI-Z outputs for 140V and 200V in Bridge mode.

Power Sharing Between High & Low Impedance Outputs

Guidelines for sharing power between Hi-Z and Lo-Z outputs on "T" models.

Securing Output Wiring to Chassis

Methods for securing output wiring using tie-down points for reliability.

Operation of the ISA Amplifier

AC Power Switch, LED Indicators, Gain Controls

How to operate the power switch, interpret LED indicators, and adjust gain controls.

Applications of ISA Amplifiers

General Application Information

Overview of ISA amplifier capabilities for Lo-Z and Hi-Z loads.

Low Frequency Filtering & Distributed Outputs

Using LF filters and example of 25V distributed output systems.

Distributed Outputs Examples

Examples of 70V and 100V distributed output systems.

Multiple Low Impedance Loads in Series

How to connect multiple low impedance speakers in series.

Multiple Low Impedance Loads in Parallel

How to connect multiple low impedance speakers in parallel.

DataPort V2 Accessories

List of compatible DataPort V2 accessories and their functions.

Troubleshooting Common Issues

No Sound Issues

Troubleshooting steps for no power, no signal, or no sound issues.

Distortion, Hum, Hiss, Feedback Issues

Solutions for distorted sound, hum, hiss, feedback, and channel separation problems.

Specifications Overview

Output Power and Dynamic Headroom

Detailed output power ratings and dynamic headroom for all models.

Frequency Response, Damping Factor, Signal-to-Noise

Technical specifications including frequency response and signal-to-noise ratio.

Amplifier Protection, Cooling, Connectors, Power Requirements

Details on amplifier protection, cooling, connectors, and power consumption.

Output Power, Frequency Response, Impedance

Comprehensive output power, frequency response, and impedance specifications.

Dimensions and Weight

Physical dimensions and weight specifications for all models.

Warranty and Contact Information

Warranty Disclaimer and Product Warranty

Details on the limited warranty, exclusions, and claims process.

How to Contact QSC Audio Products

Contact information, including mailing address, phone numbers, and website.

Related product manuals