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QSC RMX 2450 User Manual

QSC RMX 2450
26 pages
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RMX 850
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RMX 1450
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RMX 1850HD
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RMX 2450
RMX
Series Amplifiers
TD-000085-00
Rev. D
User Manual
Manuel de l’utilisateur
Bedienhandbuch
Manual del Usuario
*TD-000085-00*

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QSC RMX 2450 Specifications

General IconGeneral
Power Output (8 ohms, stereo)450 W per channel
Power Output (8 ohms, bridged mono)1500 W
Power Output (4 ohms, bridged mono)2400 W
Frequency Response20 Hz - 20 kHz, +0/-1 dB
Weight44 lbs (20 kg)
Signal to Noise Ratio> 100 dB
Total Harmonic Distortion< 0.05%
Input Impedance10 kOhms unbalanced, 20 kOhms balanced
Gain32dB
CoolingVariable speed fan
ConnectorsXLR, 1/4" TRS inputs; binding post and Speakon outputs
Dimensions3.5" x 19" x 15.9"
Power Requirements50-60 Hz
Power Output (2 ohms, stereo)1200W

Summary

Explanation of Graphical Symbols

Lightning Flash Symbol

Alerts users to dangerous voltage and risk of electric shock.

Exclamation Point Symbol

Alerts users to important operating and maintenance instructions.

Introduction

RMX Series Amplifiers Overview

Introduces the 2-RU, fan-cooled, 2-channel RMX amps and their models.

Key Features

Lists essential features of the RMX Series Amplifiers, such as clip limiters and filters.

Front Panel Overview

Details the power switch, indicators, and gain controls on the front of the amplifier.

Rear Panel Overview

Explains the barrier strip, XLR, TRS inputs, Speakon outputs, and DIP switches.

Features & Setup

Clip Limiter Functionality

Explains what a clip limiter is and how it functions to prevent distortion.

When to Use Clip Limiter

Provides guidance on when to enable or disable the clip limiter for different speaker types.

Input Filter Settings

Describes the low-frequency (LF) filter options (30 Hz, 50 Hz, OFF) and their effects.

Parallel Input Mode

Explains how to use the parallel input switches for linking multiple amplifiers.

Bridge Mono Mode Operation

Details how to combine both amp channels for increased power into a single speaker.

Operating Modes Comparison

Compares Stereo, Parallel Input, and Bridge Mono modes for amplifier operation.

Bridge Mono Mode Diagram

Illustrates the connections and signal flow for the bridge mono operating mode.

Installation and Connections

Rack Mounting Installation

Provides instructions and diagrams for mounting the amplifier in a rack.

Input Connection Types

Details XLR, TRS, and barrier strip inputs, including balanced/unbalanced configurations.

Speakon Outputs

Explains the Neutrik Speakon output connectors and their usage.

Binding Post Outputs

Details how to connect speakers using binding post terminals.

Operating Voltage and AC Mains

Instructs on connecting the amplifier to the correct AC power voltage.

Operation

AC Power Switch & Gain Controls

Covers turning the amplifier on/off and adjusting channel gain levels.

LED Indicators

Describes the meaning of the SIGNAL and CLIP LEDs on the front panel.

Fan Cooling and Ventilation

Explains the cooling system and the importance of proper ventilation.

Safe Operating Levels

Discusses amplifier protection, internal heating, and protective muting.

Applications

Mono and Stereo Mix Examples

Illustrates setups for mono mixing, stereo mixing, and sound reinforcement.

Bi-amp and Biamp Monitor Setups

Depicts bi-amping configurations and biamp monitor setups.

Instrument Amplification

Shows applications for instrument amplification and bi-amping.

Troubleshooting

No Sound: Power Indicator Issues

Addresses problems when the power indicator is not lit.

No Sound: Signal Indicator Normal

Guides on troubleshooting when the signal LED lights normally but there's no sound.

No Sound: Signal Indicator Not Lit

Troubleshoots issues where the signal LED is not lit despite power.

No Sound: CLIP LED Flashing

Addresses problems indicated by a flashing CLIP LED when signal is applied.

No Sound: CLIP LEDs Steady

Covers troubleshooting when CLIP LEDs are solid, indicating protective muting.

Distorted Sound

Diagnoses distorted sound related to CLIP LED flashing or incorrect connections.

No Channel Separation

Addresses problems with lack of channel separation and incorrect mode settings.

Hum Issues

Guides on identifying and resolving hum in the audio signal.

Hiss Issues

Provides steps to diagnose and fix hiss from the source or amplifier.

Squeals and Feedback

Offers solutions for controlling squeals and feedback in audio systems.

Specifications

Output Power Ratings

Details the output power in watts for various impedance loads and conditions.

Distortion, Frequency Response, and Noise

Lists specifications for distortion, frequency response, and noise levels.

Input Sensitivity, Impedance, Controls, and Indicators

Provides data on gain, sensitivity, impedance, controls, and indicators.

Connectors, Cooling, Protection, and Dimensions

Details connectors, cooling methods, amplifier protection, and physical dimensions.

Power Requirements and Consumption

Lists power requirements, consumption figures, and notes for different operating levels.

Warranty Information

Disclaimer of Liability

States QSC's non-liability for damages due to negligence or improper installation.

Product Warranty Terms

Outlines the three-year warranty terms, coverage, and return procedures.

Address and Telephone Information

Company Contact Details

Provides mailing address, telephone numbers, and fax for QSC Audio Products.

Online & Email Information

Lists the company's website and email addresses for inquiries.

Important Safety Precautions

Explanation of Symbols

Details the meaning of warning symbols like lightning flash and exclamation point.

General Safety Warnings

Lists crucial safety instructions for operation, installation, and maintenance.

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