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EAW CXA240 User Manual

EAW CXA240
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CXA240
Power Amplier
INSTRUCTION MANUAL
POWER
OUTPUT
CXA240 - AMPLIFIER
PEAK
PROT
SIGNAL
DC FUSE
CAUTION : SHOCK HAZARD-DO NOT OPEN
RISK OF FIRE-REPLACE FUSE AS MARKED.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
GND
FUSE
OFFON
IV/10K BAL.
DC POWER
LINE
LEVEL
ADJUST
TO REDUCE THE RISK
OF FIRE OR ELECTRI
C
SHOCK, DO NOT EXPOSE
THIS APPA RATUS TO
RAIN OR M OISTURE.
RISK OF HAZARDOUS
ENERGY! MAKE PROPER
SPEAKER CONNECTION.
SEE INSTRUCTIONS
BEFORE US ING!
WARNING
INPUT
6.3AL 250V
MANUFACTURED IN CHINA © 2004 LOUD TECHNOLOGIES INC.
"EAW" IS A REGISTERED TRADEMARK OF LOUD TECHNOLOGIES INC.
COM COM 70V 100V
4
OUTPUT
DC 24V
CAUTION
CXA240 - AMPLIFIER
115VAC/230VAC~ 60Hz/50Hz
115VAC/230VAC~ 60Hz/50Hz
115
F
U
S
E
F
U
S
E
F
U
S
E
PUSH PUSH

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EAW CXA240 Specifications

General IconGeneral
Channels2
Signal-to-Noise Ratio> 100 dB
Input Impedance20 kOhm balanced
Power Output @ 4 ohms240W per channel
Frequency Response20Hz - 20kHz (±0.5dB)

Summary

1. SAFETY INSTRUCTIONS

General Safety Guidelines

Essential safety precautions for operation, handling, environment, and connections.

Electrical Safety Warnings

Critical warnings regarding electric shock, fire, moisture, and hazardous voltages.

2. INTRODUCTION

Product Overview and Capabilities

CXA240 amplifier's purpose, performance, input/output options, and power requirements.

Key Features and Applications

Amplifier's features, connectivity, power, and suitability for various sound reinforcement scenarios.

3. FRONT PANEL FEATURES

LED Indicators

Explanation of status LEDs: protection, signal presence, and peak output.

LED Output Level Meter

Details on monitoring output signal strength and avoiding clipping with the LED meter.

Power On/Off Switch

Description of the rocker-style AC mains power switch on the front panel.

4. REAR PANEL FEATURES

Cooling Fan and Ventilation

Importance of airflow for the fan-cooled amplifier to prevent overheating.

Voltage Conversion Setup

Instructions for setting the AC voltage (115V/230V) before connecting power.

IEC AC Power Input

Details on the power cord connection and checking AC mains compatibility.

AC Fuse and Replacement

Location and replacement instructions for the AC fuse, emphasizing safety.

Ground (Earth) Screw Connection

Chassis ground connection via AC ground and professional wiring needs.

DC Power Switch Operation

Functionality of the DC switch for automatic failover to external battery backup.

DC Fuse and Protection

Location and replacement of the DC fuse for protecting the DC rail supply.

DC Battery Terminals

Connecting an external 24 VDC battery for backup power, including wiring and usage.

5. OUTPUT CONNECTIONS

Low Impedance Speaker Connection

Instructions for connecting speakers using the 4 Ω output terminal.

Constant Voltage Speaker Systems

Guidance for 70 V or 100 V systems, including transformer requirements.

6. INPUT SIGNAL ADJUSTMENT

Level Adjustment Control

Description of the control used to adjust the incoming audio signal level.

7. INPUT CONNECTORS

Unbalanced RCA Inputs

Details on connecting unbalanced audio sources like tuners or CD players via RCA.

Combination Inputs

Using combination inputs for balanced XLR or 1/4" TRS/TS plugs for line-level sources.

8. THERMAL AND RACK CONSIDERATIONS

Cooling and Ventilation

Importance of adequate airflow for the fan-cooled amplifier to prevent overheating.

Rack Mounting Guidelines

Guidelines for rack mounting the unit, including support requirements.

9. AUDIO CONNECTOR WIRING

XLR Connector Wiring

Standard wiring configuration for XLR connectors (Pin 1 Shield, Pin 2 Hot, Pin 3 Cold).

1/4" TRS Phone Plugs and Jacks

Description of TRS connectors for balanced signals and stereo headphones.

1/4" TS Phone Plugs and Jacks

Description of TS connectors for unbalanced signals.

RCA Plugs and Jacks Wiring

Explanation of RCA connectors, commonly used for unbalanced audio signals.

10. TYPICAL HOOKUP DIAGRAM

System Connection Example

Illustrative diagram showing how to connect speakers, backup battery, and audio sources.

11. PRODUCT SPECIFICATIONS

Performance Specifications

Key performance metrics: power output, frequency response, distortion, and noise.

Input/Output and Control Specs

Input types, sensitivity, impedance, output options, and control functions.

Physical Dimensions and Warranty

Unit dimensions, weight, and warranty period and coverage details.

12. SERVICE AND WARRANTY

Service Information and Procedures

Instructions for obtaining technical support and arranging for warranty service.

EAW Commercial Warranty Coverage

Explanation of what is covered by the warranty and what is excluded.

Warranty Exclusions

Specific exclusions from warranty coverage, such as damage from misuse or unauthorized modifications.

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