Crown CTS 4200 Back Panel Controls Connectors AC Power Cord Connector, Output Connectors

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CTs Multi-Channel Power Amplifiers

4 Operation

4.3 Back Panel Controls

and Connectors

Note: CTs 8200 is shown. Some CTs 4200 features are in different locations.

K. AC Power Cord Connector

Standard IEC type 320 inlet.

120V models: 15-amp.

220-240V models: 10-amp. Voltage is indicated above IEC inlet.

L. Output Connectors

One four-pole terminal strip for every two chan- nels with touch-proof cover. Accepts up to 10 AWG terminal forks. To connect outputs, first remove the touch-proof cover plate covering the terminal strip by removing the screw which holds it in place.

M. Accessory Panel

CTs 4200: Accepts an optional IQ-MC4A or VCA-MC4A module.

CTs 8200: Accepts an optional IQ-MC8 or VCA-MC8 module (explained in Section 5.3.1, Control Modules).

N. Channel Level Controls

One 21-position detented rotary potentiometer per channel, ranging from infinity (-70 dB) to

0 dB attenuation. Refer to Section 5.2.4 for pre- cise dB attenuation increments for each detent.

O. Input Connectors

Removable Phoenix-style barrier connectors for balanced input.

P. Mode Switch

Used on each consecutive pair of channels, this four-position switch is used to select the ampli- fier’s mode of operation: Dual 8/4 ohms,

Dual 70V, Bridge-Mono 16/8 ohms, and Bridge-Mono 100V.

IMPORTANT: Be sure to power off the amplifier before change the Mode- switch setting. If this is not done, the Bridge light will flash to indicate that the power must be cycled off and back on to reset the mode.

Q. Cooling Vents

Front-to-rear forced airflow.

Figure 4.2 CTs 8200 back panel (shown with touch-proof cover removed).

Operation Manual

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Contents Some models may be exported under the name Amcron CTsCTs Series amplifiers require Class 2 output wiring Important Safety InstructionsOr has been dropped European Representatives Name and Address Safety StandardFamily Name CTs EMC StandardsTroubleshooting SetupSpecifications AC Power Draw and Thermal DissipationFeatures How to Use This ManualWelcome Proven Crown AB+B Multi-Modeoutput topologyUnpack Your Amplifier Install Your Amplifier SetupChoose Output Wire and Connectors Choose Input Wire and ConnectorsCrown recommends using professionally constructed, high Over 60 ft 18.3 mDual 70V Mode Wire Your System Dual 8/4 ModeBridge-Mono 100V Mode Bridge-Mono 16/8 ModeConnect to AC Mains Startup ProcedureOperation PrecautionsReady Indicator Front Panel Controls Indicators Bridge Mode IndicatorSignal Indicator Clip IndicatorOutput Connectors Back Panel Controls Connectors AC Power Cord ConnectorAccessory Panel Input ConnectorsAdvanced Features Options Attenuation in dB Channel Level ControlWall-Mount level control panels for use with VCA module Options Control ModulesChoosing the Right Module Input SensitivityRefer to .1.6 for specific voltage requirements TroubleshootingThermal Level Control TLC is active Mode switch was switched while the power was on Power supply thermal overloadDual Mode SpecificationsCommon Mode Rejection CMR 20 Hz to 1 kHz Crosstalk below rated power, 20 Hz to 1 kHzPower Draw at Idle 120VAC mains, all channels in 70V mode Dimensions Width, Height, DepthCTs 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
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