Crown I-T4000 Operation Manual
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Crown I-T4000 Operation Manual

I-tech series
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Operation Manual

I-Tech 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, IQ System, BCA, and Amcron are registered trademarks of Crown International. IQwic,
and TCP/IQ are trademarks of Crown International. Other trademarks are the property of their respective owners.
Some models may be exported under the name Amcron.
®
©2004 by Crown Audio
Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 574-294-8000
I-T4000
I-T6000
I-T8000
®
137289-2C
5/04

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Summary of Contents for Crown I-T4000

  • 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, IQ System, BCA, and Amcron are registered trademarks of Crown International. IQwic, and TCP/IQ are trademarks of Crown International. Other trademarks are the property of their respective owners.

  • Page 2: Important Safety Instructions

    I-Tech Series Power Amplifiers Important Safety Instructions Read these instructions. TO PREVENT ELECTRIC SHOCK DO NOT REMOVE Keep these instructions. TOP OR BOTTOM COVERS. NO USER SERVICE- ABLE PARTS INSIDE. REFER SERVICING TO Heed all warnings. Follow all instructions. QUALIFIED SERVICE PERSONNEL. Do not use this apparatus near water.
  • Page 3 I-Tech Series Power Amplifiers THIS PAGE INTENTIONALLY LEFT BLANK Operation Manual page 3...

  • Page 4: Getting Started With I-Tech

    I-Tech Series Power Amplifiers Getting Started With I-Tech Channel 2 Welcome! Operating your I-Tech amplifier can be as simple or advanced as you wish. Right Channel 1 out of the box, it works like any other amplifier with stereo loudspeaker loads. •...

  • Page 5: Quick Start Guide: Bridge-Mono Wiring

    I-Tech Series Power Amplifiers Quick-Start Guide: Bridge-Mono Wiring Let’s assume that you unpacked and installed your amplifier with the proper cooling. If not, see Section 2 in this manual. We’ll also assume that you will operate the amplifier in Bridge-Mono. Basically you will turn on the amp, enable Bridge-Mono mode with the LCD Control Screen, turn off the amp, wire it, and turn it back on.

  • Page 6: Table Of Contents

    I-Tech Series Power Amplifiers Table of Contents Important Safety Instructions ............2 4.3 Presets ..................20 Getting Started with I-Tech ..............4 4.4 Digital-Audio Options (AES/EBU - CobraNet) .......20 Quick Start Guide: Stereo Wiring............4 4.5 TCP-IQ Networking ...............21 Quick Start Guide: Bridge-Mono Wiring..........5 4.6 IQ-Controllable Onboard DSP ..........27 Table of Contents................6 4.7 CobraNet Functions...............29...

  • Page 7: Welcome

    I-Tech Series Power Amplifiers 20 Hz - 20 kHz I-T4000 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 Menu/Exit Prev Next 8-ohm Bridge 4,000W 20 Hz - 20 kHz Power refers to guaranteed minimum power in watts with 0.35% THD.

  • Page 8: Setup

    I-Tech 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 your amplifier is disconnected from the Amplifier spaces in rack with blank panels.

  • Page 9: Connecting To Ac Mains

    I-Tech 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 10 I-Tech 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 11 I-Tech Series Power Amplifiers 2 Setup Channel 2 Channel 1 2.3.4 Stereo Mode Wiring Typical input and output wiring is shown in Figure 2.5. IMPORTANT: Turn off the amplifier and unplug its power cord. INPUTS: Choose one of these options: •...
  • Page 12 I-Tech 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 13: Operation

    I-Tech Series Power Amplifiers 3 Operation 3.2 Startup Procedure 3.1 Protecting Your Speakers 3.3 Precautions It's wise to avoid clipping the amplifier signal. Not only does clipping Use the following procedure when first turning on your amplifier: Your amplifier is protected from internal and external faults, but you sound bad, it can damage high-frequency drivers.

  • Page 14: Front Panel Controls And Indicators

    I-Tech Series Power Amplifiers 3 Operation These two knobs affect the Channel-1 and H. Fault Indicator 3.4 Front Panel Controls channel is initialized and ready to produce audio Channel-2 output levels. They also select Menu Red LED, one per channel, flashes when the ampli- and Indicators output.

  • Page 15: Back Panel Controls, Indicators And Connectors

    I-Tech Series Power Amplifiers 3 Operation OUTPUTS SECTION F. Power Cord Connector NETWORKING SECTION 3.5 Back Panel Controls, Indica- Standard 20 amp IEC inlet. Voltage range is tors and Connectors E. 4-Pole Speakon Output Connectors J. Preset Indicator indicated above IEC inlet. ®...

  • Page 16: Advanced Operation

    I-Tech Series Power Amplifiers 4 Advanced Operation 4.1 Advanced Operation Table of Contents....16 4.2 Navigating the LCD Control Screen ...... 17 4.6.7 Signal Mute ...............27 4.2.1 Introduction................ 17 4.6.8 Polarity Inverter ..............27 4.2.2 Basic Menu................ 17 4.6.9 Dynamic Gain Monitors (Ghost Faders) ......27 4.2.3 Advanced Features Menu...........

  • Page 17: Navigating The Lcd Control Screen

    I-Tech Series Power Amplifiers 4 Advanced Operation 4.2 Navigating the LCD Control Screen Mute/Unmute 4.2.2 Basic Menu • To mute either channel: Press and hold an Encoder knob for Getting around in the Menu is intuitive. Here are the basic operations: 4.2.1 Introduction 2 seconds.

  • Page 18: Advanced Features Menu

    I-Tech Series Power Amplifiers Clip Limiter: Limits the output signal to prevent clipping. Press CH2 Sensitivity: Sets the input sensitivity of Channel 2. Turn an Input Y: Turn an Encoder knob to select STEREO or Input Y. You will Encoder knob to change the input sensitivity. an Encoder knob to select ON or OFF.

  • Page 19: Operation Examples

    I-Tech Series Power Amplifiers 4 Advanced Operation Amplifier Label Edit: This lets you label the amplifier according to AES/EBU Input Trim: Sets the gain of the AES/EBU digital input 4.2.4 Operation Examples its function. Turn the right Encoder one click to select a letter position. signal.

  • Page 20: Presets

    I-Tech Series Power Amplifiers 4 Advanced Operation 2. Download the preset to the I-Tech amplifier. See the Presets Help file in 4.3 Presets 4.3.2 Installed Presets IQwic for details. Basically, you will open and engage a data frame. To select a preset that came installed in your amplifier: 4.3.1 Introduction 3.

  • Page 21: Tcp-Iq Networking

    I-Tech Series Power Amplifiers 4 Advanced Operation A TCP/ IP or IP address has two parts: the NETWORK ID and the HOST ID. The NETWORK 4.5 TCP/IQ Networking ID identifies the network, and the HOST ID identifies either the subnet and device, or just 4.5.1 Introduction the device if there is no subnet.

  • Page 22: Install The Wiring

    I-Tech Series Power Amplifiers 4 Advanced Operation 4.5.3 Install the Wiring IMPORTANT: Please read the wiring rules below before installing the wiring. If your com- puter does not communicate with the network devices after installation and addressing, re- read this section, as well as Section 4.5.4 on TCP/IQ addressing rules. Connect each device to the network through its own cable in a Star Network.

  • Page 23: Tcp/Iq Setup

    I-Tech Series Power Amplifiers 4 Advanced Operation 1. Select Settings > Control Panel > Network Connections (Figure 4.2). Set a static TCP/IP 4.5.5 TCP/IQ Addressing Rules address and Subnet mask on the master computer. Document the address and mask. In the next section, you will be assigning TCP/IP addresses to the devices in your network. When you do so, be sure to follow the addressing rules below.
  • Page 24 I-Tech Series Power Amplifiers 4 Advanced Operation 1B. Once the Properties window opens (Figure 4.4), click on Internet Protocol (TCP/IP). 1C. We recommend that you uncheck “Obtain an IP address automatically”, and check “Use the following address.” If you decide to set an IP address manually, specify an IP address.
  • Page 25 I-Tech Series Power Amplifiers 4 Advanced Operation 2B. Once TCP/IQ Utility has launched, select a single component and click on Set Address. In the Set Address window (Figure 4.8), set up a TCP/IQ address—it must be unique. Then set up the same Subnet mask for all of the components as well as the master computer.

  • Page 26: Tcp/Iq Addressing Worksheet

    I-Tech Series Power Amplifiers 4 Advanced Operation Table 4 4.5.7 TCP/IQ Addressing Worksheet EXAMPLE OF AN IQ ADDRESSING WORKSHEET Table 4 is an example of valid TCP/IP addresses on a stand-alone network. If the TCP/IQ network is going to be shared with other people, check with the Network Administrator for their addressing scheme.

  • Page 27: Iq-Controllable Onboard Dsp

    I-Tech Series Power Amplifiers 4 Advanced Operation • Analog Audio Input: The audio input at the Balanced Audio Inputs 4.6.11 User and Channel Labels 4.6 IQ-Controllable Onboard DSP of the I-Tech amplifier. Crown’s latest-generation Digital Signal Processing is built into the The I-Tech amplifier can store two user labels and two channel labels.

  • Page 28: Input Signal Compressor/Limiter

    I-Tech Series Power Amplifiers 4 Advanced Operation 4.6.14 Input Signal Compressor/Limiter Threshold: Sets the level, in absolute voltage, which the limiter will 4.6.19 Load Supervision allow from the amplifier. The range is from 12 V to 255 V An input signal compressor/limiter is available for each channel. Five The load supervision feature allows real-time monitoring of the load parameters control this feature: connected to each amplifier channel.

  • Page 29: Cobranet Functions

    I-Tech Series Power Amplifiers 4 Advanced Operation control. When the memory backup is disabled, the amplifier stops storing • CobraNet with Analog Backup: This allows the use of the Balanced 4.6.24 Noise Generator changes made to its settings. When the next power-up occurs the amplifier Audio Inputs to be used as backup to the CobraNet audio should the net- Each channel has an independent uncorrected noise generator that allows work's audio be lost for any reason.

  • Page 30: Cobranet Output Routing

    I-Tech Series Power Amplifiers 4 Advanced Operation System Location channels on a bundle can be can be routed to either of the two pro- • Balanced Audio Inputs: This allows the amplifier to be used not This parameter is user-settable to any alpha-numeric string of 30 char- cessing channel inputs on the I-Tech amplifier.

  • Page 31: Troubleshooting

    I-Tech 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 32 I-Tech Series Power Amplifiers 5 Troubleshooting CONDITION: Data indicator not flash- CONDITION: No sound, even though ing, even though host computer IQ the amp has power. Power LED is on with- software is active. out flashing and the amp is receiving an input sig- POSSIBLE REASON: nal.

  • Page 33: Specifications

    I-Tech Series Power Amplifiers 6 Specifications 6.1 Performance Minimum Guaranteed Power I-T4000 I-T6000 I-T8000 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.)
  • Page 34 I-Tech Series Power Amplifiers 6 Specifications Performance I-T4000 I-T6000 I-T8000 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 35: Charts

    I-Tech Series Power Amplifiers 6 Specifications 6.2 Charts Figure 6.1 Typical Frequency Response (1W) Figure 6.2 Typical Crosstalk vs. Frequency Figure 6.3 Typical Damping Factor vs. Frequency Operation Manual page 35...

  • Page 36: Ac Power Draw And Thermal Dissipation

    7 AC Power Draw and Thermal Dissipation I-Tech 4000 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-T4000 120VAC 208VAC 230VAC Thermal Dissipation...
  • Page 37 I-Tech Series Power Amplifiers 7 AC Power Draw and Thermal Dissipation I-Tech 6000 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-T6000 120VAC 208VAC 230VAC...
  • Page 38 I-Tech Series Power Amplifiers 7 AC Power Draw and Thermal Dissipation I-Tech 8000 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-T8000 120VAC 208VAC 230VAC...

  • Page 39: Advanced Features

    I-Tech Series Power Amplifiers 8 Advanced Features quiet current waveform that is in phase with the 8.1 Protection Systems 8.2 Global Switching Power Sup- ply with PFC mains voltage waveform. PFC allows you to Your Crown amplifier provides extensive pro- reduce the size and weight of your power distri- tection and diagnostic capabilities, including Thanks to its global power supply, the I-Tech...

  • Page 40: Appendix: Tcp/Iq Network Basics

    IQ network. TCP/IQ offers a number of advantages over other non-network commu- nications platforms. I-T4000 • The use of “off-the-shelf” networking hardware. This tech- nology makes use of network connectivity and hardware commonly used in the computer industry, making it both low-cost and readily available.
  • Page 41 I-Tech Series Power Amplifiers Communications between networks is allowed, but requires the use of a special piece of equipment called an IP Router. The router acts as a Gateway to allow this communication to exist. Any data traffic that is to go to the other network is routed through the IP Router.
  • Page 42 I-Tech Series Power Amplifiers The MAC address does uniquely identify each TCP/IQ component and can be used to establish the physical location of the unit. The binding of the MAC address to the IQ address through the use of the TCP/IQ Utility assures that each TCP/IQ component is physically in the right position.
  • Page 43 I-Tech Series Power Amplifiers Today, commonly available networking cards are 10/100Base-T 9.2.4 Bundles and Audio Channels 9.2.6 Switched Networks capable, which allows them to be used on either 10BaseT or 100Base-T All audio channels are packaged into groups called Bundles (formerly A more complex CobraNet network can be built using Ethernet networks.

  • Page 44: Service

    I-Tech Series Power Amplifiers 10 Service 3. To ensure the safe transportation of your Crown amplifiers are quality units that rarely list of authorized service centers in your area unit to the factory, ship it in an original require servicing. Before returning your unit for can be obtained from the Crown website at servicing, please contact Crown Technical Sup- www.crownaudio.com, or by calling Crown...

  • Page 45: Warranty

    I-Tech Series Power Amplifiers 11 Warranty UNITED STATES & CANADA est, insurance, closing costs, and other finance FROM ANY DEFECT IN THE NEW CROWN SUMMARY OF WARRANTY charges less a reasonable depreciation on the PRODUCT. THIS INCLUDES ANY DAMAGE TO Crown International, 1718 West Mishawaka Road, product from the date of original purchase.
  • Page 46 I-Tech 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 rea- Elkhart, Indiana 46517-4095 U.S.A.

  • Page 47: Crown Factory Service Information Form

    I-Tech Series Power Amplifiers Crown Factory Service Information Shipping Address: Crown Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 Phone: 1-800-342-6939 or 1-574-294-8200 Fax: 1-574-294-8124 Owner’s Name: ________________________________________________________________________________________________________________________________________________________________ Shipping Address: ______________________________________________________________________________________________________________________________________________________________ Phone Number: ________________________________Fax Number: ________________________________ Email: _______________________________________________________________________________ Model: __________________________________________________________________________________ Serial Number: ________________________________________________________________________ Purchase Date: ________________________________________________________________________________________________________________________________________________________________ NATURE OF PROBLEM (Be sure to describe the conditions that existed when the problem occurred and what attempts were made to correct it.)

This manual is also suitable for:

I-t6000I-t8000

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