Crown CTs Series Manuel d'utilisateur télécharger pdf (Page 2)

Crown International

1718 W. Mishawaka Rd.

Elkhart, IN 46517-9439

TEL: 574-294-8200

FAX: 574-294-8FAX

www.crownaudio.com

8/06 136318-1J

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 Indicators

Bridge Mode Indicator: Yellow LED, one per chan-

nel pair, illuminates when the channel pair’s Mode

Switch is set to the “Bridge” position. If Mode

switch is changed while ampliﬁ er is powered up,

Bridge LED will ﬂ ash, indicating that the ampliﬁ 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 channel’s 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,

ﬂ 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 ﬂ ash.

Fault Indicator: Red LED, one per channel, ﬂ ashes

when a fault condition has occurred in the channel.

Ventilation Grille: Front-to-rear forced airﬂ ow.

Data Indicator: Yellow LED indicates IQ Loop data

activity (if the ampliﬁ er is equipped with an IQ-MC

module, and connected to an IQ Loop).

Power Indicator: Blue LED indicates ampliﬁ er has

been turned on and AC power is available. Indica-

tor also ﬂ ashes if the ampliﬁ er shuts off due to an

under-/over-voltage condition on the AC mains.

Power Switch: Ampliﬁ 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

VCA-MC4A module. CTs 8200 accepts an optional

VCA-MC8 module.

Channel Level Controls: One 21-position detented

rotary potentiometer per channel, ranging from

inﬁ 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 ampliﬁ er’s mode of operation: Dual 8/4

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

Bridge-Mono 100V.

Cooling Vents: Front-to-rear forced airﬂ ow.

Options

Control Modules: VCA-MC4A: VCA module for CTs

4200A. 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 ampliﬁ er, and allows other ampli-

ﬁ 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 ampliﬁ er chan-

nel starts to overheat, the TLC circuit will engage

that channel’s input compressor. By compress-

ing the input, the ampliﬁ 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 ﬂ 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 ampliﬁ er channel requires service,

the corresponding Fault indicator will illuminate

to alert the user of this condition. If this occurs,

return the ampliﬁ er to the Crown factory or to an

authorized Crown service center.

High-Pass Filter: A ﬁ xed 35-Hz (70-Hz in CTs

4200) high-pass ﬁ lter per channel pair is auto-

matically inserted when the mode switch is set to

either of the constant-voltage settings. The high-

pass ﬁ lter corner frequency in the CTs 8200 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

ampliﬁ er’s power supply turns off and the blue

Power LED ﬂ ashes. The ampliﬁ 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 ampliﬁ er from

excessive AC current draw.

Inrush Limiting: A soft-start circuit in the power

supply minimizes the ampliﬁ er’s current draw

during power-on.

Variable-speed Fan: Continuously variable speed

fan directs the airﬂ ow through the ampliﬁ er for

cooling.

Speciﬁ 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.

, Inc.

Crown’s Three-Year, No-Fault, Fully Transferable Warranty

Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown ampliﬁ er—an

unsurpassed industry standard. With this unprecedented No-Fault protection, your new Crown

ampliﬁ er is warranted to meet or exceed original speciﬁ cations for the ﬁ rst three years of ownership.

During this time, if your ampliﬁ er fails, or does not perform to original speciﬁ cations, it will be

repaired or replaced at our expense. About the only things not covered by this warranty are those

losses normally covered by insurance and those caused by intentional abuse. And the coverage is

transferable, should you sell your ampliﬁ er.

See your authorized Crown dealer for full warranty disclosure and details. For customers outside

of the USA, please contact your authorized Crown distributor for warranty information or call

574-294-8200.

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CTs Series 1
Multi-channel 1

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