Crown Audio I-Tech Series operation manual OFF v, Digital DIG Analog Anlg

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I-Tech Series Power Amplifiers

4 Advanced Operation

Peak Voltage Limiter: Limits the peak output voltage to a level that you set, either OFF or 0 to 255 volts. Press the Encoder to turn on the Limiter. Once it’s on, turn the Encoder to set the voltage.

Additional controls, such as attack and release, are available through IQwic or System Architect.

Peak Voltage Limiter

OFF v 224

Average Power Limiter: Limits the output power to an amount that you set, from 10 watts to the maximum output power of the amplifier. Press the Encoder to turn on the Limiter. Once it’s on, turn the Encoder to set the power. Additional controls, such as nominal impedance, attack, and release, are available through IQwic or Sys- tem Architect.

Avg Power Limiter

OFF w 1050

Pink Noise Generator: The default setting is OFF. Press an Encoder knob to turn on the generator. Its level will read –100 dB. Adjust the noise level from –100 dB to +20 dB in 0.5 dB steps by turning Encoder 1 or 2. The level can be adjusted only when this menu option is visible. To turn off the generator, press an Encoder knob or go to another menu item.

Pink Noise Generator

OFF dB -17.5

AES/EBU Input Trim: Sets the gain of the AES/EBU digital input signal. Turn an Encoder to change the gain.

AES/EBU Input Trim

12.0 dB 13.5

Input Source: For each channel, press the Encoder to select ana- log, digital, or automatic backup source. Options are:

Digital (DIG)

Analog (ANLG)

Digital with analog backup (A <– D) Digital with analog override (D <– A)

Digital with analog backup: The I-Tech is being fed a digital signal and an analog signal. The input is currently switched to the digital signal. If it fails, the I-Tech switches instantly to the analog signal.

Digital with analog override: The input is switched to the digital sig- nal, and no analog signal is applied. If an analog signal is sent, the I-Tech switches instantly to the analog signal. If the analog signal fails, the I-Tech switches to the digital signal after a delay set by the Hold Time slider in the Input Section of the IQwic Signal Path Page.

Input Source

DIG

A D

Maximum Analog Input: Press an Encoder to select +21 dBu or +15 dBu. When set to +21 dBu, the maximum input level to the amplifier is +21 dBu. When set to +15 dBu, the maximum input level to the amplifier is +15 dBu. Note: Changing this value changes the range of sensitivities available to the amplifier.

For more information see the I-Tech Sensitivity Charts in the Appendix of the I-Tech Application Guide. It is available online at www.crownaudio.com/itech/pdf/137327.pdf.

Maximum Analog Input

21dBu

Exit: To exit the Advanced Menu and go to the Attenuation screen, press Menu/Exit once.

Coarse Signal Delay: Sets the coarse signal delay in each chan- nel. Twist each channel’s Encoder knob to vary the delay. The delay step size is speed sensitive.

Coarse Signal Delay in the LCD screen corresponds to Coarse Sig- nal Delay in IQwic > I-Tech control panel > Signal Path Tab > Delay block.

Coarse Signal Delay

131.227ms 130.894

Fine Signal Delay: Sets the fine signal delay in each channel. Twist each channel’s Encoder knob to vary the delay. The delay step size is speed sensitive.

Fine Signal Delay in the LCD screen corresponds to Fine Signal Delay in IQwic > I-Tech control panel > Signal Path Tab > Delay block.

Fine Signal Delay

0.6042 ms 0.7917

Output Polarity: Press each channel’s Encoder knob to toggle the output signal polarity between + and –.

Output Polarity in the LCD screen corresponds to the Polarity but- tons in IQwic > I-Tech control panel > Signal Path Tab > Output Sec- tion block.

Output Polarity

+ +

Operation Manual

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Contents 11/07 T4000 T6000 T8000Some models may be exported under the name Amcron 137289-10Importantes Instructions de Sécurité Important Safety InstructionsEMC Standards Safety StandardEuropean Representatives Name and Address Family Name I-TechGetting Started With I-Tech Quick-Start Guide Stereo WiringFor bridge-mono operation, see Figure A.5 Rear Panel Connections for Bridge-Mono Wiring Quick-Start Guide Bridge-Mono WiringTable of Contents How to Use This Manual FeaturesHigh power density, up to 8000 watts in a 2U chassis Analog and digital thru connectorsUnpack and Install Your Amplifier SetupWire Inputs and Outputs Wiring basics Connecting to AC MainsChoose Output Wire and Connectors Choose Input Wire and ConnectorsDistance Important Turn off the amplifier and unplug its power cord Stereo Mode WiringReach maximum attenuation Bridge-Mono ModeProtecting Your Speakers Startup ProcedurePrecautions OperationFront Panel Controls and Indicators Cooling Vents Back Panel Controls, Indica- tors and Connectors Fans Advanced Operation Advanced Operation Table of ContentsFront Panel Lockout Navigating the LCD Control Screen IntroductionAttenuation and Bar Meters Mute/UnmuteCH1 LF-1&2 CH2 LF-3&4 Menu/Exit Prev PrevDigital DIG Analog Anlg OFF vOFF 114 Press Menu/Exit Operation Example Operation ExamplesMenu Tree Digital Audio Options AES/EBU Presets IntroductionUser Presets Downloadable PresetsAddress Devices on the Network Network Setup WizardFix Errors Individually Select Network CardError Reporting Input Signal Level MonitorPower/ Standby Control Signal MuteClip Eliminator Input Signal Compressor/LimiterAverage Power Limiter Memory Backup ConfigurationNoise Generator Input Signal RouterDelay Latency FiltersAmplifier’s Power switch is off TroubleshootingRated range Speakers not connected Open circuit due to speaker failure Input signal level is very lowEthernet link is broken Latency digital inputs SpecificationsPerformance Hz 20 kHz with 0.35% THDDimensions Crosstalk below rated power, 20 Hz to 1 kHzCommon Mode Rejection CMR 20 Hz to 1 kHz AC Line ConnectorTypical Frequency Response 1W ChartsTech 4000 AC Current Draw and Thermal Dissipation AC Power Draw and Thermal DissipationT4000 T6000 Tech 6000 AC Current Draw and Thermal DissipationT8000 Tech 8000 AC Current Draw and Thermal DissipationAdvanced Features TCP/IQ and HiQnet Networks Appendix a Network BasicsTCP/IQ and HiQnet audio networks offer many advantages 192.168.0.1 Network AddressesLet’s explain each identifier 00-0A-40-00-DC-2FAppendix B Setting Sensitivity for Best Gain Staging Service United States & Canada WarrantyWorldwide Except USA & Canada Fax Crown Audio, IncProduct purchased from *Business/Individual Country 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.