Crown CTs 4200 CTs 8200 Operation Manual

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Crown International 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 TEL: 574-294-8200 FAX: 574-294-8FAX www.crownaudio.com 4/05 136318-1F\ CTs Series Multi-channel Weight (Net, Shipping):CTs 4200: 27 lb 8 oz (12.5 kg), 32 lb (14.5 kg) CTs 8200: 36 lb 6 oz (16.5 kg), 47 lb (21.3 kg). Front Panel Controls and IndicatorsBridge Mode Indicator: Yellow LED, one per chan- nel pair, illuminates when the channel pairs Mode Switch is set to the Bridge position. If Mode switch is changed while ampli er is powered up, Bridge LED will ash, indicating that the ampli er must be powered off and on to reset the Mode. Ready Indicator: Green LED, one per channel, illu- minates when the channel is initialized and ready to produce audio output. Signal Indicator: Green LED, one per channel, illu- minates to indicate the presence of input signals above –40 dBu. Clip Indicator: Red LED, one per channel, illumi- nates when the THD of the channels output signal rises to a level typically considered as the onset of audible clipping. The Clip Indicator also will illuminate during Thermal Level Control (TLC) or input overload. Thermal Indicator: Red LED, one per channel, ashes when a state of thermal stress or overload has caused the channel to shut down. If the power supply goes into thermal overload, all channel LEDs will ash. Fault Indicator: Red LED, one per channel, ashes when a fault condition has occurred in the channel. Ventilation Grille: Front-to-rear forced air ow. Data Indicator: Yellow LED indicates IQ Loop data activity (if the ampli er is equipped with an IQ-MC module, and connected to an IQ Loop). Power Indicator: Blue LED indicates ampli er has been turned on and AC power is available. Indica- tor also ashes if the ampli er shuts off due to an under-/over-voltage condition on the AC mains. Power Switch: Ampli er is on when the switch is in the IN position. Back Panel Controls and Connectors AC Power Cord Connector: IEC inlet, type 320; 100/120VAC units: 15A; 220/230/240VAC units: 10A. Voltage is indicated above IEC inlet. Output Connectors: One four-pole terminal strip for every two channels with touch-proof cover. Accepts up to 10 AWG terminal forks. Accessory Panel: CTs 4200 accepts an optional IQ-MC4A or VCA-MC4A module. CTs 8200 accepts an optional IQ-MC8 or VCA-MC8 module. Channel Level Controls: One 21-position detented rotary potentiometer per channel, ranging from in nity (–70 dB) to 0 dB attenuation. Input Connectors: Removable Phoenix-style bar- rier connectors for balanced input. Mode Switch: Used on each consecutive pair of channels, this four-position switch is used to select the ampli ers mode of operation: Dual 8/4 ohms, Dual 70V, Bridge-Mono 16/8 ohms, and Bridge-Mono 100V. Cooling Vents: Front-to-rear forced air ow. Options Control Modules: IQ-MC4A: IQ module for CTs 4200A; VCA-MC4A: VCA module for CTs 4200A. IQ-MC8: IQ module for CTs 8200; VCA-MC8: VCA module for CTs 8200. Wall-mount level control panels for use with VCA module: 1-VCAP: Single-gang panel with 1 VCA channel volume control; 4-VCAP: Two-gang panel with 4 VCA channel volume controls. T-170V: This is an autoformer that allows 100V output from the ampli er, and allows other ampli- ers without direct constant voltage output to be easily integrated into distributed systems. TP-170V: This is a rack-mountable panel with four autoformers as described above. Protection Systems Thermal Level Control (TLC): If an ampli er chan- nel starts to overheat, the TLC circuit will engage that channels input compressor. By compress- ing the input, the ampli er will not generate as much heat and will have a chance to cool down. The degree of compression is proportional to the amount of overheating. If the channel becomes too hot for safe operation even after full TLC limiting, the channel will shut off, and the Thermal Indicator for that channel will ash brightly to alert the user that a state of thermal stress or overload has cause the channel to shut down. FIT (Fault Isolation Topology): Isolates faults within affected channels. Fault: If an ampli er channel requires service, the corresponding Fault indicator will illuminate to alert the user of this condition. If this occurs, return the ampli er to the Crown factory or to an authorized Crown service center. 35-Hz High-Pass Filter: A xed 35-Hz high-pass lter per channel pair is automatically inserted when the mode switch is set to either of the con- stant-voltage settings. The high-pass lter corner frequency can be set to 70 Hz, or bypassed, with a service option. AC Under-/Over-Voltage Protection: If the AC line voltage varies out of an acceptable range, the ampli ers power supply turns off and the blue Power LED ashes. The ampli er will turn back on when the AC line voltage returns to safe operating levels. Models Under-Voltage Limit Over-Voltage Limit 100VAC (CTs 8200 only) 90VAC 110VAC 120 VAC units 108VAC 132VAC 220V/230V/240V units 198VAC 264VAC Power Fuse: A fuse protects the ampli er from excessive AC current draw. Inrush Limiting: A soft-start circuit in the power supply minimizes the ampli ers current draw during power-on. Variable-speed Fan: Continuously variable speed fan directs the air ow through the ampli er for cooling. Speci cations subject to change without prior notice. Latest information available at www.crownaudio.com. Crown, Crown Audio, IQ System and Multi-Mode are registered trademarks of Crown International. Other trade- marks are the property of their respective owners. Printed in U.S.A. © 2005 Crown Audio ®, Inc. Crowns Three-Year, No-Fault, Fully Transferable Warranty Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown ampli er-an unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crown \ ampli er is warranted to meet or exceed original speci cations for the rst three years of ownership. During this time, if your ampli er fails, or does not perform to original speci cations, it will be repaired or replaced at our expense. About the only things not covered b\ y this warranty are those losses normally covered by insurance and those caused by intentional abu\ se. And the coverage is transferable, should you sell your ampli er. See your authorized Crown dealer for full warranty disclosure and detail\ s. For customers outside of the USA, please contact your authorized Crown distributor for warrant\ y information or call 574-294-8200.