Crown I-T12000 HD Operation Manual
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Crown I-T12000 HD Operation Manual

I-tech hd series power amplifier
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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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Summary of Contents for Crown I-T12000 HD

  • Page 1: Operation Manual

    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.

  • Page 2: Important Safety Instructions

    Important Safety Instructions Importantes Instructions de Sécurité 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

  • Page 3: Declaration Of Conformity

    I-Tech HD Series Power Amplifiers Crown International, Inc. ISSUED BY: Crown International, Inc. 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 Family Name: I-Tech HD Model Names: I-T5000HD, I-T9000HD, I-T12000HD EMC Standards:...

  • Page 4: Table Of Contents

    Table of Contents Important Safety Instructions ...2 Declaration of Conformity ...3 Table of Contents ...4 1 Welcome ...5 1.1 Features ...5 1.2 How to Use This Manual ...5 2 Setup ...6 2.1 Unpack and Install Your Amplifier ...6 2.2 Connecting to AC Mains ...7 2.3 Wire Inputs and Outputs ...7 3 Operation ...11 3.1 Protecting Your Speakers ...11...

  • 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: Dimensions

    2 Setup 2.1 Unpack and Install Your Amplifier Please unpack and inspect your amplifier for any damage that may have occurred during transit. If damage is found, notify the transpor tation company immediately. Only you can ini tiate a claim for shipping damage. Crown will be happy to help as needed.

  • Page 7: Connecting To Ac Mains

    When using network connections, pass the CAT 5 cable five times through a ferrite core (Figure 2.4), available from Crown Audio Inc. This is to ensure compliance with emission regulations. Figure 2.4 Pass the CAT 5 Cable Five Times Through the Ferrite Core...
  • Page 8 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: Bridge-Mono Mode

    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 It’s wise to avoid clipping the amplifier signal. Not only does clipping sound bad, it can damage high-frequency drivers. To prevent clipping, use System Architect software’s Level Max suite to enable or display the peak voltage limiter and average power limiter in your amplifier’s built-in DSP.

  • Page 12: Front Panel Controls And Indicators

    3 Operation 3.4 Front Panel Controls and Indicators D. USB 2.0 Connector Accepts a USB drive to transfer presets from the Many of these functions can be disabled using drive to the amplifier DSP, and vice versa. Blackout Mode (a selection in the Advanced E.

  • 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 and Connectors Speakon 2.10 and Tables 1, 2 and 3 for connector wiring. The top Speakon A. Fans channels so it can be used for bridge-mono Provide front-to-back forced airflow for cooling.

  • Page 14: Advanced Operation

    4 Advanced Operation 4.1 Advanced Operation Table of Contents...14 4.2 Navigating the LCD Control Screen ... 15 4.2.1 Introduction ...15 4.2.2 Basic Selections ...16 4.2.3 Advanced Menu ...17 4.2.4 Monitor Menu ...20 4.2.5 Alert Menu ...20 4.2.6 Networking Menu ...21 4.2.7 CobraNet Menu ...22 4.3 Presets ...

  • Page 15: Navigating The Lcd Control Screen

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.2 Navigating the LCD Control Screen 4.2.1 Introduction The LCD Control Screen and its controls let you configure the ampli fier and access many features that before were available only through a remote computer. Also, you can recall DSP presets via the front panel.

  • Page 16: Operation Examples

    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).

  • 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 to the Sample Rate screen. The sample rate of the amplifier’s DSP is displayed. It can be modified only in System Architect software because all of the FIR filter settings will need to be recalculated as a result of the change.
  • Page 18 4 Advanced Operation Attenuator Limits: You can set the maximum attenuation from 0 dB to –100 dB. This feature allows you to set a limit on the attenua tors. Once set, attenuation cannot be adjusted beyond this level. The attenuator limit appears as a line in the attenuator bar meter.
  • 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 output limiter and after the preceding filter, is a gain block (not shown on the Signal Path block diagram). Bandpass Gain adjusts the gain of this block between -24 dB and +24 dB.

  • Page 20: Monitor Menu

    4 Advanced Operation 4.2.4 MONITOR MENU This menu lets you monitor the status of the amplifier. Starting from the Attenuation Screen, press Menu, then press Prev four times. Or, starting from the Advanced Menu screen, press Next to go to the Monitor Menu screen. Then press an Encoder knob to access the selections in this menu.

  • 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 using the control software. A low limit load error occurs if the load impedance falls below the value set with the Low Limit spin control on the Amplifier Settings page in System Architect.

  • Page 22: Cobranet Menu

    4 Advanced Operation DHCP: Turn an Encoder knob to turn DHCP on or off, then press the knob to confirm your selection. With DHCP enabled, the IP address of the amplifier might change at power-up. See System Architect Help files for more information on DHCP.

  • Page 23: Presets

    I-Tech HD Series Power Amplifiers 4 Advanced Operation 4.3 Presets 4.3.1 Introduction Your I-Tech HD amplifier has a wide variety of onboard Digital Signal Process ing (DSP). Some applications for this DSP are speaker configuration (set ting the drive levels, frequency bands, delays and limiting for your particular speakers), EQ, filtering, compression, and much more.

  • Page 24: File Transfer Via The Usb Port

    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 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 4.5 List of Pop-Up Boxes and Descriptions These messages may appear on the LCD screen. If N/A is displayed, the particular menu has been locked out via System Architect software. Overcurrent! Device File is not valid! Loading File Loading File...

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

    4 Advanced Operation 4.6 Digital Audio Options (AES/EBU) Digital audio inputs allow you to keep the amplifier input signals in the digital domain. Keeping the input signal digital reduces the number of Dig ital-to-Analog and Analog-to-Digital conversions. This provides better sound quality and reduces pickup of electrical interference.

  • 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

    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 Operation Manual 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

    4 Advanced Operation 4.8.10 Crossover Filters The Crossover section lets you use infinite impulse response (IIR) or finite impulse response (FIR) filters for the crossover. FIR advantages: FIR has a longer processing latency but has less phase artifacts compared to IIR. FIR allows for brickwall, 48dB/oct and 24dB/octave filters.

  • 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

    4 Advanced Operation 4.8.13 Amplifier Settings The Amplifier Output Enable button turns each channel on or off. Error Reporting The I-Tech amplifier can detect four different error conditions per channel and errors in the AC line voltage. Each error type can be indi vidually configured to report the error through the network.

  • 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: Output Gain

    4 Advanced Operation Maximum analog input Low +21 dBu (0 dB) High +15 dBu (+6 dB) Analog input AES input trim input Cobranet input trim Cobranet input page 38 Source select Analog Output input attenuator sensitivity Figure 4.4 The Various Gain Settings in the I-Tech HD 4.8.19 Fixed-Gain Mode in the I-Tech HD Fixed-gain mode makes any I-Tech HD model have the same gain, regardless of output power.

  • Page 39: Troubleshooting

    I-Tech HD Series Power Amplifiers 5 Troubleshooting “Off/Flashing/On” means that the LED can be off, or flashing, or on. Operation Manual CONDITION: Power indicator is off and power switch is not illu­ minated. POSSIBLE REASON: • The amplifier has lost AC power. •...
  • Page 40 5 Troubleshooting page 40 CONDITION: No sound, even though the amp has power. Power LED is on with out flashing and the amp is receiving an input sig nal. Signal indicator is on or flashing. POSSIBLE REASON • Speakers not connected. •...

  • Page 41: Specifications

    I-Tech HD Series Power Amplifiers 6 Specifications Minimum Guaranteed Power 20 Hz - 20 kHz with 0.35% THD Stereo, 2 ohms (per ch.) Stereo, 4 ohms (per ch.) Stereo, 8 ohms (per ch.) Bridge mono, 4 ohms Bridge mono, 8 ohms Performance Input Sensitivity (volts RMS) for rated output Voltage Gain for full rated power at 8 ohms...
  • Page 42 6 Specifications Performance Damping Factor (8 ohms): 20 Hz to 100 Hz Crosstalk (below rated power, 20 Hz to 1 kHz) Common Mode Rejection (CMR) (20 Hz to 1 kHz) DC Output Offset (Shorted input) Input Impedance (nominal) Load Impedance (Note: Safe with all types of loads) Stereo Bridge Mono Required AC Mains...
  • 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. Load Idle (sleep mode) Idle (awake)
  • Page 46 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. Load Idle (sleep mode) Idle (awake) 1/8th Power Pink Noise 8 Ohms/Ch.
  • 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. Load Idle (sleep mode) Idle (awake)

  • Page 48: Advanced Features

    8 Advanced Features 8.1 Protection Systems Your Crown amplifier provides extensive pro tection and diagnostic capabilities, including thermal level control, fault indicators, high-pass filtering, DC protect, AC under/over volt age protection, inrush limiting, and variable-speed fans with tachometer feedback. Microprocessor monitors fans, and signals an error via System Architect if fans are not operating.

  • Page 49: Appendix A: Network And Cobranet Basics

    I-Tech HD Series Power Amplifiers 9 Appendix A: Network and CobraNet Basics 9.1 HiQnet Networks Background: A Local Area Network (LAN) is a group of computers in a venue that share data, either through cables or via wireless transmission. Ethernet is a popular LAN communication protocol for PCs.

  • Page 50: Audio Network

    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: A Closer Look At Cobranet

    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: Switched Networks

    In System Architect, you create audio connections between sending devices (transmitters) and receiving devices (receivers). For example, a mixer could be a transmitter, and a power amp could be a receiver. You assign each connection a Bundle number. The Bundle number indi cates which devices are communicating with each other.

  • 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

    1. Fill out and include the Crown Audio Factory Ser vice Information sheet in the back of this manual. 2. Do not ship any accessories (manuals, cords, hard ware, etc.) with your unit.

  • Page 55: Warranty

    I-Tech HD Series Power Amplifiers 11 Warranty SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB SEQUENT OWNER of each NEW Crown product, for a period of five (5) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship.
  • Page 56 11 Warranty SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB SEQUENT OWNER of each NEW Crown1 product, for a period of five (5) years from the date of pur chase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship, and...

  • Page 57: Product Registration

    ________________________________ Product purchased from: *(Business/Individual) ___________________________ Country: ________________________ Comments: ____________________________________________________________________________________ _____________________________________________________________________________________________ _____________________________________________________________________________________________ Operation Manual PRODUCT REGISTRATION Crown Audio, Inc. Fax: 574-294-8329 1718 W Mishawaka Rd Elkhart IN 46517 OWNER’S INFORMATION - PLEASE PRINT PRODUCT INFORMATION * SERIAL # e.g. 8000000000...
  • Page 58 I-Tech HD Series Power Amplifiers THIS PAGE INTENTIONALLY LEFT BLANK Operation Manual page 58...

  • Page 59: Crown Audio Factory Service Information

    Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 SRA #: __________________(If sending product to Crown factory service.) Individual or Business Name: ____________________________________________________________________________________________________________________________________________________________ Phone #: __________________________________________________ Street Address (please, no P.O. Boxes): _____________________________________________________________________________________________________________________________________________________ City: __________________________________________ Nature of problem: ___________________________________________________________________________________________________________________________________________________________________...

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