I-Tech HD Series Power Amplifiers

3Operation

3.4Front Panel Controls and Indicators

Many of these functions can be disabled using Blackout Mode (a selection in the Advanced Menu, Section 4.2.3).

A. Cooling Vents

Front-to-rear forced airfl ow through foam dust fi lter

B. LCD Control Screen

Integrated LCD with white backlight, controls amplifi er setup and operation.

The LCD Control Screen and its controls let the user adjust the amplifi er’s attenuation and muting, confi gure 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 reconfi gure the amp for various applications.

C.Power Switch

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

D.USB 2.0 Connector

Accepts a USB drive to transfer presets from the drive to the amplifi er DSP, and vice versa.

E.Fault Indicator

Red LED, one per channel, fl ashes when the amplifi er output channel has stopped operating. Usually this means that the amplifi er must be serviced.

F.Thermal Indicator

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

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 during Thermal Level Control (TLC) limiting. The Clip Indicator can be turned of during Blackout mode.

H. 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.

I. Menu/Exit Button

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

J. Prev Button

Selects the previous item in the menu.

K. Next Button

Selects the next item in the menu.

L. Signal Indicators

These can be disabled during Blackout mode. Three green LEDS per channel indicate the amplifi er’s input and output signal levels. From top to bottom the LEDs are

–10 dB: amplifi er output is 10 dB below clipping.

–20 dB: amplifi er output is 20 dB below clipping.

Signal: selected 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 output. Indicator is off when the channel is set to standby mode via System Architect or in Blackout mode.

N.Power Indicator

Blue LED indicates amplifi er has been turned on and AC power is available. The LED will fl ash when the AC line voltage is 15% above or below the nominal rated range. This indicator can be turned off in Blackout mode.

O.Data Indicator

Yellow LED indicates network data activity. Data indicator fl ashes only when the amplifi er is polled for data, or is polled to see whether it is online. This indicator can be turned off in Blackout mode.

PBridge Mode Indicator

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

Figure 3.1 Front Panel Controls and Indicators

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Operation Manual

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Crown Audio I-T5000 HD Front Panel Controls and Indicators, Cooling Vents, LCD Control Screen, Power Switch, Prev Button

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.