Harman Crown I-Tech HD Series Operation Manual
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Harman Crown I-Tech HD Series Operation Manual

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Operation Manual
I-Tech HD Series
Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your
local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000.
This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible
situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have
occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.
Trademark Notice: Crown, Crown Audio, IQ, BCA, and Amcron are registered trademarks of Crown International. HiQnet is a trademark
of Harman International Industries, Inc. Other trademarks are the property of their respective owners.
Some models may be exported under the name Amcron.
©2008 by Crown Audio
Inc., 1718 W. Mishawaka Rd., Elkhart, Indiana 46517-9439 U.S.A. Telephone: 574-294-8000
®
I-T5000 HD
I-T9000 HD
I-T12000 HD
®
140811-1
5/11

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  • Page 1 Trademark Notice: Crown, Crown Audio, IQ, BCA, and Amcron are registered trademarks of Crown International. HiQnet is a trademark of Harman International Industries, Inc. Other trademarks are the property of their respective owners. Some models may be exported under the name Amcron.

  • Page 2: Important Safety Instructions

    I-Tech HD Series Power Amplifiers Important Safety Instructions Wichtige Sicherheitsinstruktionen The I-Tech Series amplifiers are certified only at 120V in Canada. Importantes Instructions de Sécurité Instrucciones de Seguridad Importantes IMPORTANT I-Tech Series amplifiers require Class 2 output wiring. Les amplificateurs de série de I-Tech exigent des câbles de sortie de 1.

  • Page 3: Declaration Of Conformity

    I-Tech HD Series Power Amplifiers DECLARATION of CONFORMITY Crown International, Inc. Sue Whitfield FOR COMPLIANCE QUESTIONS ONLY: ISSUED BY: Crown International, Inc. 574-294-8289 1718 W. Mishawaka Road Elkhart, Indiana 46517 U.S.A. European Representative’s Name and Address: David Budge 10 Harvest Close Yateley GU46 6YS United Kingdom Equipment Type: Commercial Audio Power Amplifiers...

  • Page 4: Table Of Contents

    I-Tech HD Series Power Amplifiers Table of Contents Important Safety Instructions ............2 4.6 Digital Audio Options (AES/EBU) ..........26 Declaration of Conformity ..............3 4.7 Networking the Amplifier ............26 Table of Contents ................4 4.8 Software-Controllable Onboard DSP ........26 1 Welcome ............5 5 Troubleshooting ..........39 1.1 Features .................5 6 Specifications ...........41 1.2 How to Use This Manual ............5...

  • Page 5: Welcome

    I-Tech HD Series Power Amplifiers 20 Hz - 20 kHz I-T5000HD Power 1,800W 2-ohm Dual (per ch.) 4-ohm Dual (per ch.) 2,000W 8-ohm Dual (per ch.) 1,250W 4-ohm Bridge 3,600W 8-ohm Bridge 4,000W 20 Hz - 20 kHz Power refers to guaranteed minimum power in watts with 0.35% THD.

  • Page 6: Setup

    I-Tech HD Series Power Amplifiers 2 Setup When using an equipment rack, mount units 2.1 Unpack and Install Your CAUTION: Before you begin, make sure directly on top of each other. Close any open Amplifier your amplifier is disconnected from the spaces in rack with blank panels.

  • Page 7: Connecting To Ac Mains

    I-Tech HD Series Power Amplifiers 2 Setup 2.2 Connecting to AC Mains 2.3 Wire Inputs and Outputs WARNING: The third (ground) prong of the supplied AC power 2.3.1 Wiring basics cord connector is a required safety feature. Do not attempt to disable this ground connection by using an adapter or other •...
  • Page 8 I-Tech HD Series Power Amplifiers 2 Setup 2.3.2 Choose Input Wire and Connectors Crown recommends using pre-built or professionally wired, bal anced line (two-conductor plus shield), 22-24 gauge cables and connectors. Use 3-pin male XLR connectors. Unbalanced line may also be used but may result in noise over long cable runs.
  • Page 9 I-Tech HD Series Power Amplifiers 2 Setup 2.3.4 Stereo Mode Wiring Typical input and output wiring is shown in Figure 2.9. IMPORTANT: Turn off the amplifier and unplug its power cord. INPUTS: Choose one of these options: • Connect analog input wiring for both channels. •...
  • Page 10 I-Tech HD Series Power Amplifiers 2 Setup 2.3.5 Bridge-Mono Mode Overview: Turn on the amp, enable Bridge-Mono mode using the LCD Control Screen, turn off the amp, wire it, and turn it back on. 1. Be sure that no cables are connected to the amplifier. Turn on the front-panel power switch.

  • Page 11: Operation

    I-Tech HD Series Power Amplifiers 3 Operation 3.1 Protecting Your Speakers 3.2 Startup Procedure 2. Use care when making connections, selecting signal sources and controlling the output level. The load you save may be your own! It’s wise to avoid clipping the amplifier signal. Not only does clipping When first turning on your amplifier, follow the procedures in the Quick-Start Guide on page 4 (stereo) or page 5 (bridge-mono).

  • Page 12: Front Panel Controls And Indicators

    I-Tech HD Series Power Amplifiers 3 Operation 3.4 Front Panel Controls and Indicators D. USB 2.0 Connector H. Level Controls (Encoders) M. Ready Indicator Accepts a USB drive to transfer presets from the Speed-sensitive, 0.5 dB steps, range 0 to –100 dB. Green LED, one per channel, illuminates when the Many of these functions can be disabled using drive to the amplifier DSP, and vice versa.

  • Page 13: Back Panel Controls, Indicators And Connectors

    I-Tech HD Series Power Amplifiers 3 Operation 3.5 Back Panel Controls, Indica tors These two connectors accept 2-pole or 4-pole H. MAC Address M AES/EBU Digital Loop-through Output ® and Connectors Male XLR active/re-clocked AES/EBU digital loop-through. Speakon connectors. See Figures 2.5 through This specific amplifier’s network identifier that is burned into its The signal at this connector duplicates the digital input 2.10 and Tables 1, 2 and 3 for connector wiring.

  • Page 14: Advanced Operation

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.1 Advanced Operation Table of Contents..14 4.2 Navigating the LCD Control Screen ....15 4.8.3 Levels and Indicators .............27 4.2.1 Introduction ..............15 4.8.4 Input Signal Router ............28 4.2.2 Basic Selections ............16 4.8.5 Source Configuration ............29 4.2.3 Advanced Menu .............17 4.8.6 CobraNet Advanced Settings .........29 4.2.4 Monitor Menu ...............20...

  • Page 15: Navigating The Lcd Control Screen

    I-Tech HD Series Power Amplifiers 4 Advanced Operation MENU TREE Attenuation - Mute - Lockout ALL MENUS: Next/Previous loops 4.2 Navigating the LCD Control Screen Menu Tree Menu button 4.2.1 Introduction As a handy reference, Figure 4.2 shows the menu The LCD Control Screen and its controls let you configure the structure of the LCD control screen.

  • Page 16: Basic Selections

    I-Tech HD Series Power Amplifiers 4 Advanced Operation Operation Examples 4.2.2 Basic Selections 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 attenua tion Opening Screen: On power-up, the LCD Control Screen dis plays the Operation Example 1 level.

  • Page 17: Advanced Menu

    I-Tech HD Series Power Amplifiers 4 Advanced Operation Sample Rate: Starting from the Attenuation screen, press Menu/Exit to go Amp Mode: This screen lets you set up the amplifier for Dual, Input Y or Presets: A preset is a group of DSP and amplifier settings for a particular Bridge Mono mode.
  • Page 18 I-Tech HD Series Power Amplifiers 4 Advanced Operation Attenuator Limits: You can set the maximum attenuation from 0 dB to Analog Source Select: Turn the left Encoder knob to select Analog 1, AES Input Trim: Turn the left Encoder knob to vary the gain of the AES digital –100 dB.
  • Page 19 I-Tech HD Series Power Amplifiers 4 Advanced Operation Bandpass Gain: In each channel of the I-Tech HD’s DSP, just before the LED Meter Display Type : Here you can set the LCD bar meters to display Pink Noise Generator: Press an Encoder knob to turn on the generator. Its output limiter and after the preceding filter, is a gain block (not shown on the average or peak levels.

  • Page 20: Monitor Menu

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.2.4 MONITOR MENU AC Voltage: This shows the AC line voltage at the AC cord inlet to the When an error occurs, the count displayed in this screen is incremented, and amplifier. the operat ing time since the error is displayed.

  • Page 21: Networking Menu

    I-Tech HD Series Power Amplifiers 4 Advanced Operation Low Limit Load Errors: This screen lets you view low-load errors without SLM (Sweep Load Monitoring) Errors: This screen lets you view SLM Clear All Error Logs: In this screen, you can press and hold an Encoder knob using the control software.

  • Page 22: Cobranet Menu

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.2.7 COBRANET MENU DHCP: Turn an Encoder knob to turn DHCP on or off, then press the knob to CobraNet Tx: Turn the left Encoder knob to set the number of the TxA Bundle To access the CobraNet Menu from the Attenuation screen, press an Encoder for Channel 1.

  • Page 23: Presets

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.3 Presets 4.3.3 Downloadable Presets We will describe each type of preset in detail. Crown and JBL engineers have designed I-Tech HD DSP presets that are 4.3.1 Introduction 4.3.2 User Presets opti mized for various JBL loudspeakers, such as Vertec Line Arrays. To use Your I-Tech HD amplifier has a wide variety of onboard Digital Signal User presets are DSP presets that you set up.

  • Page 24: File Transfer Via The Usb Port

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.4 File Transfer Via the USB Port On the front panel of the amplifier is a USB Type A port which can transfer files either Insert USB Device direction between a USB flash drive and the amplifier. These files can be of two types: A Preset file, which contains amplifier DSP settings for a specific loudspeaker/ amplifier configuration.

  • Page 25: List Of Pop-Up Boxes And Descriptions

    I-Tech HD Series Power Amplifiers 4 Advanced Operation “Lockout” is displayed when front panel lockout has been enabled from either the Lockout software or front panel. It prevents any changes from the display. “USB Lockout” is displayed when USB lockout has been enabled from the software. Lockout It disables all USB functions.

  • Page 26: Digital Audio Options (Aes/Ebu)

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.6 Digital Audio Options (AES/EBU) Select Network Card The first page of the wizard lists all the network adapters currently Digital audio inputs allow you to keep the amplifier input signals in the digital domain. Keeping the input signal digital reduces the in the computer.

  • Page 27: Amplifier Dsp Selection Screen

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.1 Amplifier DSP Selection Screen On the left of this screen is the Input Signal Level Monitor (explained later on this page). On the right side are rows of DSP selection buttons for each channel. When you click on a button, a control panel opens for that button’s function.

  • Page 28: Input Signal Router

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.4 Input Signal Router Each channel of the I-Tech’s signal processing has an Input Signal Router that lets you choose the audio signal that will be used by the channel. Choose one of the following configurations: •...

  • Page 29: Source Configuration

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.5 Source Configuration In this screen you can configure the levels and settings of the analog, AES and CobraNet inputs. The input signal of each channel can be independently muted. The I-Tech HD amplifier can be set to work as a fixed gain amplifier: any input signal is given a fixed amount of gain, either 26dB or 32dB.

  • Page 30: Input Signal Compressor

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.7 Input Signal Compressor An input signal compressor is available for each channel. Several parameters control this feature: On/off button: Enables or disables this function. Threshold: Sets the level, in dBu, above which the compressor begins to attenuate the input signal.

  • Page 31: Input Eq And Output Eq

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.9 Input EQ and Output EQ These screens let you adjust channel equalization at up to 16 frequencies. You can select filter type, frequency, gain, and bandwidth in octaves or Q as set by the user preferences in System Architect.

  • Page 32: Crossover Filters

    I-Tech HD Series Power Amplifiers 4 Advanced Operation The amplifier contains two FIR blocks which can be used in various Each audio channel has three separate places where filters can be placed in the 4.8.10 Crossover Filters configurations: system: input EQ (16 filters), Crossover, and Output EQ. Up to 24 filters per The Crossover section lets you use infinite impulse response (IIR) or •...

  • Page 33: Levelmax Suite

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.11 LevelMax Suite This is a suite consisting of a peak voltage limiter, average power limiter, clip limiter and thermal transducer limiter. First you will set the mode to automatic or advanced: •...

  • Page 34: Amplifier Settings

    I-Tech HD Series Power Amplifiers 4 Advanced Operation Continuous Load Monitoring 4.8.13 Amplifier Settings The load supervision feature allows real-time monitoring of the The Amplifier Output Enable button turns each channel on load connected to each amplifier channel. When enabled, the I- or off.

  • Page 35: Amplifier Information

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.14 Amplifier Information Information about the amplifier is stored in the software system inven tory and is displayed on the software control panels. Information includes manufacturer, model, date code, and serial number. The green items can’t be edited.

  • Page 36: Preset Manager

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.17 Preset Manager The control settings for all the functions can be stored as presets. Up to 50 presets can be saved in the I-Tech amp’s nonvolatile memory. Each preset can be named with a 30 character name describing its function, which is also stored in memory.

  • Page 37: Signal Generator

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.8.18 Signal Generator Both channels share a noise generator that allows noise to be mixed into the audio signal. This is useful for noise masking applications and testing. Each channel has the following controls: •...

  • Page 38: Fixed-Gain Mode In The I-Tech Hd

    I-Tech HD Series Power Amplifiers 4 Advanced Operation Maximum analog Fixed gain input Low +21 26/32 dB Low +21 dBu (0 dB) High +15 dBu (+6 dB) +15 32/38 dB Analog input Source select Fixed Analog Output gain input attenuator compensation AES input trim sensitivity...

  • Page 39: Troubleshooting

    I-Tech HD Series Power Amplifiers 5 Troubleshooting CONDITION: Power indicator is CONDITION: Thermal indicator is off and power switch is not illu­ minated. POSSIBLE REASON: POSSIBLE REASON: • The amplifier is becoming too hot for safe • The amplifier has lost AC power. operation.
  • Page 40 I-Tech HD Series Power Amplifiers 5 Troubleshooting CONDITION: Data indicator not flash­ CONDITION: No sound, even though ing, even though host computer the amp has power. Power LED is on software is active. with out flashing and the amp is receiving an input sig nal.

  • Page 41: Specifications

    I-Tech HD Series Power Amplifiers 6 Specifications Minimum Guaranteed Power I-T5000HD I-T9000HD I-T12000HD 20 Hz - 20 kHz with 0.35% THD Stereo, 2 ohms (per ch.) 1800W 2500W 3500W Stereo, 4 ohms (per ch.) 2000W 3000W 4000W Stereo, 8 ohms (per ch.) 1250W 1500W 2100W...
  • Page 42 I-Tech HD Series Power Amplifiers 6 Specifications Performance I-T5000HD I-T9000HD I-T12000HD Damping Factor (8 ohms): 20 Hz to 100 Hz > 5000 > 5000 > 5000 Crosstalk (below rated power, 20 Hz to 1 kHz) > 80 dB > 80 dB >...
  • Page 43 I-Tech HD Series Power Amplifiers 6 Specifications Charts Figure 6.1 Typical Frequency Response (1W) Figure 6.2 Typical Crosstalk vs. Frequency Operation Manual page 43...
  • Page 44 I-Tech HD Series Power Amplifiers 6 Specifications Figure 6.3 Typical Damping Factor vs. Frequency Operation Manual page 44...

  • Page 45: Ac Power Draw And Thermal Dissipation

    I-Tech HD Series Power Amplifiers 7 AC Power Draw and Thermal Dissipation I-Tech 5000HD AC Current Draw and Thermal Dissipation: Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Data based on both channels driven. I-T5000HD 120VAC 208VAC...
  • Page 46 I-Tech HD Series Power Amplifiers 7 AC Power Draw and Thermal Dissipation I-Tech 9000HD AC Current Draw and Thermal Dissipation: Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Data based on both channels driven. I-T9000HD 120VAC 208VAC...
  • Page 47 I-Tech HD Series Power Amplifiers 7 AC Power Draw and Thermal Dissipation I-Tech 12000HD AC Current Draw and Thermal Dissipation: Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Data based on both channels driven. I-T12000HD 120VAC 208VAC...

  • Page 48: Advanced Features

    I-Tech HD Series Power Amplifiers 8 Advanced Features 8.1 Protection Systems 8.2 Global Switching Power Sup ply distro (and couple noise into other sys tem with PFC components), PFC draws a smooth and quiet Your Crown amplifier provides extensive current waveform that is in phase with the mains pro tection and diagnostic capabilities, including Thanks to its global power supply, the I-Tech voltage waveform.

  • Page 49: Appendix A: Network And Cobranet Basics

    The computer, and all the audio devices, connect to the switch as in Figure 9.1. HiQnet protocol lets you control and monitor cer tain Harman products (including Crown) on an Ethernet network. Figure 9.1 shows a typical HiQnet network.
  • Page 50 I-Tech HD Series Power Amplifiers MAC address: Short for Media Access Control, MAC is an address for an audio compo nent that is burned into firmware in the component by its manufacturer, and cannot be changed. Every component in a network has its own unique MAC address. The MAC address is printed on a label outside the component.
  • Page 51 I-Tech HD Series Power Amplifiers 9.2 A Closer Look at CobraNet Licensed by Cirrus, CobraNet is a protocol, firmware and hardware that lets you trans- mit digital audio over a 100Base-T Fast-Ethernet network. This section provides an overview of CobraNet. Cirrus Logic has provided a number of technical papers that describe CobraNet in detail.
  • Page 52 I-Tech HD Series Power Amplifiers In System Architect, you create audio connections between sending 9.2.4 The Conductor In effect, each network port in an audio component has 100MB of devices (transmitters) and receiving devices (receivers). For example, band width. The network can be as large as 100MB times the number A CobraNet system is coordinated by one audio device in the network a mixer could be a transmitter, and a power amp could be a receiver.

  • Page 53: Appendix B: Setting Sensitivity For Best Gain Staging

    I-Tech HD Series Power Amplifiers 9 Appendix B: Setting Sensitivity for Best Gain Staging Optimized system gain structure maximizes signal to noise within the sys tem. Adjusting your amplifier to fit within an optimized system gain struc ture is accomplished by properly setting both the sensitivity and attenuation controls within the amplifier.

  • Page 54: Service

    I-Tech HD Series Power Amplifiers 10 Service Crown amplifiers are quality units that rarely require Remem ber to transport the unit in the original factory 4. Use a bold black marker and write the SRA number 1. Open carton and lift center cushion leaving both end- ser vicing.

  • Page 55: Warranty

    I-Tech HD Series Power Amplifiers 11 Warranty UNITED STATES & CANADA SUMMARY OF WARRANTY the actual purchase price, not including inter est, THIS INCLUDES ANY DAMAGE TO ANOTHER insurance, closing costs, and other finance PRODUCT OR PRODUCTS RESULT ING FROM Crown International, 1718 West Mishawaka Road, charges less a reasonable depreciation on the SUCH A DEFECT.
  • Page 56 I-Tech HD Series Power Amplifiers 11 Warranty WORLDWIDE EXCEPT USA & CANADA SUMMARY OF WARRANTY WHAT THE WARRANTOR WILL DO DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES Crown International, 1718 West Mishawaka Road, We will remedy any defect, regardless of the Elkhart, Indiana 46517-4095 U.S.A.

  • Page 57: Product Registration

    I-Tech HD Series Power Amplifiers PRODUCT REGISTRATION Crown Audio, Inc. 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 Phone: 574-294-8000 Fax: 574-294-8329 www.crownaudio.com Online registration is also available at http://crownweb.crownintl.com/webregistration. Warranty is only valid within the country in which the product is purchased. When this form is used to register your product, it may be mailed or faxed.
  • Page 58 I-Tech HD Series Power Amplifiers THIS PAGE INTENTIONALLY LEFT BLANK Operation Manual page 58...

  • Page 59: Crown Factory Service Information Form

    Crown Audio Factory Service Information Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 PLEASE PRINT CLEARLY SRA #: __________________(If sending product to Crown factory service.) Model: ____________________________________________ Serial Number: _____________________ Purchase Date: _____________ PRODUCT RETURN INFORMATION Individual or Business Name: ____________________________________________________________________________________________________________________________________________________________ Phone #: __________________________________________________ Fax #: ________________________________________...

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