Crown Audio CH Series, CL Series Setup, Unpack Your Amplifier Install Your Amplifier

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CH and CL Series Power Amplifiers

2 Setup

2.1 Unpack Your Amplifier

2.2 Install Your Amplifier

2.3 Ensure Proper Cooling

Please unpack and inspect your amplifier for any damage that may have occurred during transit. If damage is found, notify the transpor- tation company immediately. Only you can ini- tiate a claim for shipping damage. Crown will be happy to help as needed. Save the shipping carton as evidence of damage for the shipper’s inspection.

We also recommend that you save all packing materials so you will have them if you ever need to transport the unit. Never ship the unit without the factory pack.

YOU WILL NEED (not supplied):

•Input wiring cables

•Output wiring cables

Rack for mounting amplifier (or a stable surface for stacking)

WARNING: Before you start to set up your amplifier, make sure you read and observe the Important Safety Instruc- tions found at the beginning of this manual.

CAUTION: Before you begin, make sure your amplifier is disconnected from the power source, with the power switch in the “off” position and all level controls turned completely down (counterclock- wise).

Use a standard 19-inch (48.3 cm) equipment rack (EIA RS-310B). See Figure 2.1 for ampli- fier dimensions.

You may also stack amps without using a cabinet.

NOTE: When transporting, amplifiers should be supported at both front and back.

When using an equipment rack, close any open spaces in rack with blank panels. DO NOT block front or rear air vents. The side walls of the rack should be a minimum of two inches (5.1 cm) away from the amplifier sides, and the back of the rack should be a minimum of four inches (10.2 cm) from the amplifier back panel.

For more information on cooling, please refer to the Crown Amplifier Application Guide, available online at www.crownaudio.com.

Figure 2.2 illustrates standard amplifier airflow.

Figure 2.2 Airflow

Figure 2.1 Mounting Dimensions

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Operation Manual

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Contents CH and CL Series Some models may be exported under the name AmcronImportant Safety Instructions Use only with a cart, stand, tripod, bracket, orEuropean Representatives Name and Address Safety StandardCrown International, Inc EMC StandardsTable of Contents Features How to Use This ManualWelcome Setup Unpack Your Amplifier Install Your AmplifierChoose Input Wire and Connectors Choose Output Wire and ConnectorsReinstall no-touch cover to maintain safety Switch Settings Model CH4 Models CH1 and CH2Wire Your System Models CH1 & CH2 Stereo Mode Refer to .5 for output connector pin assign- mentsModels CH1 & CH2 140V Bridge Mode Model CH4 Stereo Mode Model CH4 Bridge ModeInputs Connect input wiring to Channel Models CL1 & CL2 Bridge Mode Models CL1 & CL2 StereoModel CL4 Stereo Mode Model CL4 Bridge ModeInputs Connect input wiring to CH1 Screw terminal All Models How to Parallel the Inputs in Stereo ModeStartup Procedure Connect to AC MainsPrecautions OperationCH and CL Series Front Panel Controls and Indicators Operation Speed Fan-On-Demand Indicators If the amplifier output stage stops operatingControls Advanced Features Options SST-4622 SST-3632SST-4632 Fault Monitoring Location of Fault JackPrecision Detented Level Controls Attenuation in dBPrinciples of Operation CH1, CH2, CL1 and CL2Power Indicator LED is driven from the low-voltage supply Models CL1 & CL2 Circuit Block DiagramCH4 and CL4 Audio Signal Path Model CH4 Circuit Block DiagramModel CL4 Circuit Block Diagram Power Supply Operation Troubleshooting Amplifier output wires have developed a short circuitFlashing Specifications 120V/60 Hz Units, Bridge mono modeOhms 275W KHz at rated THD Ohms 560WOhms 450W 600WModel CL1 & CL2 CH and CL Series Power Amplifiers Models CH4 & CL4 Damping Factor Typical Output Impedance AC Power Draw Thermal Dissipation Following equation is used to calculate thermal dissipationAC Power Draw Thermal Dissipation AC Power Draw Thermal Dissipation CL2 Service Warranty 12/01Worldwide Except USA & Canada Fax Mo/day/yrThis page Intentionally Left Blank Model Individual or Business Name Phone # Fax #‰ Personal/Consumer ‰ Business/Corporate
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