Crown Audio I-Tech Series operation manual Front Panel Controls and Indicators Cooling Vents

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I-Tech Series Power Amplifiers

3Operation

3.4Front Panel Controls and Indicators

A. Cooling Vents

Front-to-rear forced airflow through foam dust filter.

LCD Control Screen and Controls

B. LCD Control Screen

Integrated LCD with white backlight, controls ampli- fier setup and operation.

The LCD Control Screen and its controls let the user adjust the amplifier's attenuation and muting, con- figure the amp, set up and view error monitoring (such as temperature and load supervision), and recall DSP presets. The presets allow the user to quickly reconfigure the amp for various applica- tions.

C. Level Controls (Encoders)

Speed-sensitive, 0.5 dB steps, range 0 to –100 dB. These two knobs affect the Channel-1 and Channel-2 output levels. They also select Menu items and adjust parameter values that are displayed on the LCD control screen.

D. Menu/Exit Button

“Menu” enters the main menu. “Exit” leaves the menu.

E. Prev Button

Selects the previous item in the menu.

F. Next Button

Selects the next item in the menu.

Thermal and Fault Indicators

G.Clip Indicator

Red LED, one per channel, illuminates when the channel’s output signal reaches the onset of audible

clipping. The Clip Indicator also will illuminate dur- ing Thermal Level Control (TLC) limiting.

H.Thermal Indicator

Red LED, one per channel, illuminates when the channel has shut down due to thermal stress or overload.

I.Fault Indicator

Red LED, one per channel, flashes when the ampli- fier output channel has stopped operating. Usually this means that the amplifier must be serviced.

Signal Indicators

Three green LEDS per channel indicate the ampli- fier’s input and output signal levels. From top to bot- tom the LEDs are:

J. –10 dB: amplifier output is 10 dB below clipping.

K. –20 dB: amplifier output is 20 dB below clipping.

L. Signal: input signal is above –40 dBu.

M. Ready Indicator

Green LED, one per channel, illuminates when the channel is initialized and ready to produce audio out- put. Indicator is off when the channel is set to standby mode via System Architect or the IQ system.

N.Power Indicator

Blue LED indicates amplifier has been turned on and AC power is available. The LED will flash when the AC line voltage is 15% above or below the nominal rated range.

O.Bridge Mode Indicator

Yellow LED illuminates when the amplifier is set to Bridge-Mono mode.

P.Data Indicator

Yellow LED indicates HiQnet or IQ data activity. Data indicator flashes only when the amplifier is polled for data, or is polled to see whether it is online.

Q.Power Switch

Push-on/push-off switch glows green when AC power is present at the power cord and the amplifier circuit breaker is in the “on” position.

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Figure 3.1 Front Panel Controls and Indicators

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Operation Manual

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Contents 137289-10 T4000 T6000 T8000Some models may be exported under the name Amcron 11/07Important Safety Instructions Importantes Instructions de SécuritéFamily Name I-Tech Safety StandardEuropean Representatives Name and Address EMC StandardsFor bridge-mono operation, see Quick-Start Guide Stereo WiringGetting Started With I-Tech Quick-Start Guide Bridge-Mono Wiring Figure A.5 Rear Panel Connections for Bridge-Mono WiringTable of Contents Analog and digital thru connectors FeaturesHigh power density, up to 8000 watts in a 2U chassis How to Use This ManualSetup Unpack and Install Your AmplifierConnecting to AC Mains Wire Inputs and Outputs Wiring basicsDistance Choose Input Wire and ConnectorsChoose Output Wire and Connectors Stereo Mode Wiring Important Turn off the amplifier and unplug its power cordBridge-Mono Mode Reach maximum attenuationOperation Startup ProcedurePrecautions Protecting Your SpeakersFront Panel Controls and Indicators Cooling Vents Back Panel Controls, Indica- tors and Connectors Fans Advanced Operation Table of Contents Advanced OperationMute/Unmute Navigating the LCD Control Screen IntroductionAttenuation and Bar Meters Front Panel LockoutMenu/Exit Prev Prev CH1 LF-1&2 CH2 LF-3&4OFF v Digital DIG Analog AnlgOFF 114 Menu Tree Operation ExamplesPress Menu/Exit Operation Example Downloadable Presets Presets IntroductionUser Presets Digital Audio Options AES/EBUSelect Network Card Network Setup WizardFix Errors Individually Address Devices on the NetworkSignal Mute Input Signal Level MonitorPower/ Standby Control Error ReportingMemory Backup Configuration Input Signal Compressor/LimiterAverage Power Limiter Clip EliminatorFilters Input Signal RouterDelay Latency Noise GeneratorRated range TroubleshootingAmplifier’s Power switch is off Ethernet link is broken Input signal level is very lowSpeakers not connected Open circuit due to speaker failure Hz 20 kHz with 0.35% THD SpecificationsPerformance Latency digital inputsAC Line Connector Crosstalk below rated power, 20 Hz to 1 kHzCommon Mode Rejection CMR 20 Hz to 1 kHz DimensionsCharts Typical Frequency Response 1WT4000 AC Power Draw and Thermal DissipationTech 4000 AC Current Draw and Thermal Dissipation Tech 6000 AC Current Draw and Thermal Dissipation T6000Tech 8000 AC Current Draw and Thermal Dissipation T8000Advanced Features TCP/IQ and HiQnet audio networks offer many advantages Appendix a Network BasicsTCP/IQ and HiQnet Networks 00-0A-40-00-DC-2F Network AddressesLet’s explain each identifier 192.168.0.1Appendix B Setting Sensitivity for Best Gain Staging Service Warranty United States & CanadaWorldwide Except USA & Canada Product purchased from *Business/Individual Country Crown Audio, IncFax This page Intentionally Left Blank Crown Audio Factory Service Information This page Intentionally Left Blank This page Intentionally Left Blank

I-Tech Series specifications

The Crown Audio I-Tech Series represents a pinnacle of power amplification technology, designed to meet the demanding needs of live sound reinforcement and installation applications. Renowned for their flexibility, efficiency, and sound quality, these amplifiers integrate cutting-edge features that appeal to both professional audio engineers and musicians alike.

One of the key technologies employed in the I-Tech Series is the use of DriveCore technology. This innovative design allows the amplifiers to achieve high power output while minimizing size and weight. The DriveCore technology combines the efficiency of Class D amplification with superior sound quality, yielding a lightweight solution that maintains high fidelity and low distortion even at peak volumes.

The I-Tech Series amplifiers come equipped with a comprehensive suite of digital signal processing (DSP) capabilities. Each amplifier integrates sophisticated DSP algorithms that enable advanced speaker management, including extensive equalization, delay settings, and limiting controls. This ensures optimal performance for a variety of loudspeakers and installation scenarios, allowing users to tailor the output to the specific acoustical environment.

Connectivity is another strong point for the I-Tech Series. The amplifiers often include a variety of input options, providing flexibility for different setups, whether analog or digital. The inclusion of Ethercon connectivity enables seamless integration into a networked environment, allowing for remote control and monitoring via Crown's sophisticated software interface. Users can access real-time data about the system's performance, making adjustments on-the-fly to maintain optimal sound quality.

Durability and reliability are fundamental characteristics of the Crown I-Tech amplifiers. Built to withstand the rigors of touring and the demands of permanent installations, these amplifiers are housed in rugged enclosures that dissipate heat effectively while maintaining a compact form factor. Integrated protection circuits safeguard against over-temperature, over-current, and short-circuits, ensuring longevity even under extreme conditions.

In terms of power output, the I-Tech Series features a range of models, each capable of delivering substantial wattage to drive large sound systems with authority. The efficient cooling design allows for extended use without compromising performance, making them suitable for both large concerts and smaller venues.

In summary, the Crown Audio I-Tech Series amplifiers combine advanced technologies, including DriveCore and flexible DSP, to deliver powerful and high-quality audio performance. Their robust design, comprehensive connectivity options, and tailored control make them a premier choice for audio professionals seeking reliable and effective amplification solutions.