Crown CTS 4200, CTS 8200 operation manual Operation, Precautions

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CTs Multi-Channel Power Amplifiers

4 Operation

4.1 Precautions

Your amplifier is protected from internal and external faults, but you should still take the fol- lowing precautions for optimum performance and safety:

1. Before use, your amplifier first must be con- figured for proper operation, including input and output wiring hookup. Improper wiring can result in serious operating difficulties. For information on wiring and configuration, please consult the Setup section of this manual or, for advanced setup techniques, consult Crown’s Amplifier Application Guide available online at www.crownaudio.com.

2. Use care when making connections, select- ing signal sources and controlling the out- put level. The load you save may be your own!

3. Do not short the ground lead of an output cable to the input signal ground. This may form a ground loop and cause oscillations.

4.WARNING: Never connect the output to a power supply, battery or power main. Electrical shock may result.

5.Tampering with the circuitry, or making unauthorized circuit changes may be hazard- ous and invalidates all agency listings, and may also void the product’s warranty.

6.Do not operate the amplifier with the red Clip LEDs constantly flashing.

7.Do not overdrive the mixer, which will cause clipped signal to be sent to the amplifier. Such signals will be reproduced with extreme accuracy, and loudspeaker damage may result.

8.Use caution when operating the amplifier with a 2-ohm load impedance on 1 channel. Do not operate the amplifier with less than a 2-ohm load impedance per channel when driving more than 1 channel. Due to the amplifier’s output protection, such a config- uration may result in premature clipping, speaker damage or a blown power fuse.

Remember: Crown is not liable for damage that results from overdriving other system compo- nents.

Operation Manual

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Contents Some models may be exported under the name Amcron CTsOr has been dropped Important Safety InstructionsCTs Series amplifiers require Class 2 output wiring EMC Standards Safety StandardEuropean Representatives Name and Address Family Name CTsAC Power Draw and Thermal Dissipation SetupTroubleshooting SpecificationsProven Crown AB+B Multi-Modeoutput topology How to Use This ManualFeatures WelcomeUnpack Your Amplifier Install Your Amplifier SetupOver 60 ft 18.3 m Choose Input Wire and ConnectorsChoose Output Wire and Connectors Crown recommends using professionally constructed, highDual 70V Mode Wire Your System Dual 8/4 ModeBridge-Mono 100V Mode Bridge-Mono 16/8 ModeConnect to AC Mains Startup ProcedureOperation PrecautionsClip Indicator Front Panel Controls Indicators Bridge Mode IndicatorReady Indicator Signal IndicatorInput Connectors Back Panel Controls Connectors AC Power Cord ConnectorOutput Connectors Accessory PanelAdvanced Features Options Attenuation in dB Channel Level ControlInput Sensitivity Options Control ModulesWall-Mount level control panels for use with VCA module Choosing the Right ModuleThermal Level Control TLC is active TroubleshootingRefer to .1.6 for specific voltage requirements Mode switch was switched while the power was on Power supply thermal overloadDual Mode SpecificationsDimensions Width, Height, Depth Crosstalk below rated power, 20 Hz to 1 kHzCommon Mode Rejection CMR 20 Hz to 1 kHz Power Draw at Idle 120VAC mains, all channels in 70V modeCTs 8200 Typical Frequency Response 1 W CTs 8200 Typical Output Impedance vs. Frequency AC Power Draw and Thermal Dissipation AC Power Draw Thermal DissipationOhms Bridge 320x4 Service 12/01 WarrantyWorldwide Except USA & Canada CTs Multi-Channel Power Amplifiers Nature of Problem Crown Factory Service InformationThis page Intentionally Left Blank CTs Multi-Channel Power Amplifiers