I-Tech HD Series Power Amplifiers

4 Advanced Operation

Operation Examples

Operation Example 1

How to set the CH1 input sensitivity using the LCD Control Screen:

1.After power-up, when the Attenuation screen appears, press

Menu/Exit.

2.Press Next.

3.Turn the left Encoder to set the sensitivity. NOTE: If you do not see the sensitivity you want, try changing the Maximum Analog Input level (see below).

4.Press Menu/Exit.

Operation Example 2

How to set the Maximum Analog Input level using the LCD Control Screen:

1.After power-up, when the Attenuation screen appears, press

Menu/Exit.

2.Press Next until you see “Advanced Menu.”

3.Push an Encoder knob.

4.Press Next until you see “Maximum Analog Input.”

5.Turn an Encoder to change the maximum analog input level. Press an Encoder to confi rm and save your setting.

6.Press Menu/Exit.

Operation Example 3

How to monitor the Thermal Errors using the LCD Control Screen:

1.After power-up, when the Attenuation screen appears, press Menu/Exit.

2.Press Prev until you see “Alert Menu.”

3.Push an Encoder knob.

4.Press Next until you see “Thermal Errors.

4.2.2 Basic Selections

Opening Screen: On power-up, the LCD Control Screen displays the Crown logo. After a few seconds, the fi rmware version appears, then the Attenuation screen appears.

PPoweredd Byy

(Power On) 1.0.0.5

Attenuation and Bar Meters

This screen displays the attenuation in dB and on bar meters. To change the attenuation in either channel, turn the Encoder. Attenuation changes

0.5dB per detent when you turn the Encoder slowly, and more when you turn the Encoder quickly. The current preset name is displayed in the upper-right corner. The (M) is explained on the next page under Presets.

Attenuation Default (M)

-30.0 dB -30.0

Mute/Unmute (in the Attenuation screen)

• To mute either channel: Press and hold an Encoder knob for

1 second. The display will alternate between MUTE and the attenuation level. While the amplifi er is muted, you can adjust attenuation for each channel by turning an Encoder knob.

•To unmute either channel: Press and hold an Encoder knob again for

1 second.

Attenuation

Default (M)

-30.0 dB MUTE

Front Panel Lockout (in the Attenuation screen)

The amplifi er’s administrator can control access to menu mode and the amplifi er’s attenuators. This lockout can be done either by the front panel buttons or by System Architect software.

To lock or unlock the menu with the front-panel buttons: press Next and Prev simultaneously. To lock or unlock the menu with System Architect software: go to the Tools Menu > Display Screen Security and press the lockout button. If a specifi c parameter is protected, the screen says “N/A” or “Change Disabled.”

If the lockout is done from the software, the user can disable the lockout only in the software, not by pressing the front-panel buttons.

If the menu is locked and you press any button or turn an Encoder, the word “LOCKOUT” is displayed. If a specifi c parameter is protected, the screen says “N/A” or “Change Disabled.”

Now let’s look at the function of each menu selection.

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Operation Manual

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Crown Audio I-T5000 HD, IT9000 HD, I-T12000 HD, I-T9000 HD operation manual 30.0 dB, DB Mute, Operation Examples
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I-T9000 HD, I-T12000 HD, IT9000 HD, I-T5000 HD specifications

Crown Audio has established itself as a leader in the audio amplification industry, and its IT series, including the IT9000 HD, I-T9000 HD, I-T5000 HD, and I-T12000 HD, exemplifies this commitment to quality and innovation. These amplifiers are engineered to deliver exceptional audio performance, reliability, and user-friendly operation, making them ideal for a variety of applications, from concert sound to installed audio systems.

The IT9000 HD is a powerhouse that provides robust performance through its high-efficiency design. Featuring advanced Class I technology, it can deliver a staggering output of up to 9000 watts. This model is built with a lightweight, compact chassis that allows for easy installation and portability. The IT9000 HD incorporates Crown’s proprietary DriveCore technology, which combines the amplifier’s driver and output stage into a single chip, significantly increasing efficiency and reducing the overall size of the amplifier.

Next in line, the I-T9000 HD offers similar power output capabilities but adds flexibility with its network connectivity options. This model supports the latest in digital signal processing, allowing users to tailor their audio system with precision. It also features intelligent fan cooling technology that adjusts the fan speed based on heat generation, ensuring optimal performance under varying load conditions.

The I-T5000 HD stands out with its unique ability to deliver a maximum of 5000 watts, making it an ideal choice for smaller venues or mobile applications where power-to-weight ratio is critical. It shares many of the technological advancements of its larger counterparts, including enhanced DSP capabilities and comprehensive monitoring via onboard indicators and remote software control.

Lastly, the I-T12000 HD is the flagship model in this series, capable of an impressive 12000 watts output. It boasts advanced power management features and offers multiple operating modes, including stereo and bridged operation. The I-T12000 HD is designed for the most demanding applications, ensuring ultra-reliable performance and pristine sound quality in even the largest spaces.

All models in the Crown IT series feature a rugged construction for durability, along with intuitive front-panel controls for easy operation. They also include comprehensive network control options, allowing users to manage and monitor their systems remotely via DSI (Digital Signal Interface) and DSP capabilities.

In conclusion, Crown Audio's IT9000 HD, I-T9000 HD, I-T5000 HD, and I-T12000 HD amplifiers represent the pinnacle of amplifier technology, delivering unmatched performance, efficiency, and versatility for a wide range of audio applications. Whether for live events or permanent installations, these amplifiers provide the power and reliability necessary to meet the demands of modern audio environments.
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