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I-Tech Series
I-T4000
Operation Manual
I-T6000
I-T8000
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
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I-Tech Series Power Amplifiers Important Safety Instructions The I-Tech Series amplifiers are certified only at Wichtige Sicherheitsinstruktionen 120V in Canada. Importantes Instructions de Sécurité Instrucciones de Seguridad Importantes IMPORTANT I-Tech Series amplifiers require Class 2 output wiring. 1) Read these instructions. TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR Les amplificateurs de série de I-Tech exigent des câbles de sortie de 2) Keep these instructions. BOTTOM COVERS.
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I-Tech Series Power Amplifiers Crown International, Inc. DECLARATION of CONFORMITY FOR COMPLIANCE QUESTIONS ONLY: Sue Whitfield ISSUED BY: Crown International, Inc. 574-294-8289 1718 W. Mishawaka Road swhitfield@crownintl.com 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 Model Names: I-T40
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I-Tech Series Power Amplifiers Getting Started With I-Tech Welcome! Operating your I-Tech amplifier can be as simple or advanced as you wish. Right out of the box, it works like any other amplifier with stereo loudspeaker loads. � For bridge-mono operation, see page 5. ® � If you want to control and monitor the amplifier with Crown’s IQ System software, see Figure A.1 Rear-panel Connections Section 4.5.4. If you are going to use SystemArchitect, please follow the information included for Ste
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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. 1. Be sure that no cables are connected to the amplifier. Plug the amplifier power cord into the
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I-Tech Series Power Amplifiers Table of Contents Important Safety Instructions ............................................................2 4.3 Presets ..................................................................................22 Declaration of Conformity..................................................................3 4.4 Digital-Audio Options (AES/EBU)..........................................22 Getting Started with I-Tech ..................................................
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I-Tech Series Power Amplifiers 20 Hz - 20 kHz I-T4000 Power 2-ohm Dual (per ch.) 1,800W 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 1 2 20 Hz - 20 kHz Power refers to guaranteed minimum power in watts with 0.35% THD. ® � 3rd-generation patented Class I (BCA ) cir- � Thermal management controller and two dis- 1 Welcome cuitry couples power efficiently to the load and crete thermal zones with variable-spe
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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 Amplifier your amplifier is disconnected from the spaces in rack with blank panels. DO NOT power source, with the power switch in Please unpack and inspect your amplifier for block front or rear air vents. The side walls of the “off” position and all level controls any damage that may have occurred
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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 � Always use shielded wire for input wiring. The higher the density of the methods. shield (the outer conductor) the better. Spiral wrapped shield is not recom- mended. Amplifiers don’t create energy.
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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. Figure 2.4 Figure 2.5 Unbalanced Analog Input Connector Wiring Balanced Analog Input Connector Wiring or Figure 2.4 shows connector pin assignments for balanced analog A
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I-Tech Series Power Amplifiers 2 Setup 2.3.4 Stereo Mode Wiring Typical input and output wiring is shown in Figure 2.8. IMPORTANT: Turn off the amplifier and unplug its power cord. INPUTS: Choose one of these options: � Connect analog input wiring for both channels. � Connect an AES/EBU digital signal to the AES/EBU connector. OUTPUTS: Maintain proper polarity (+/–) on output connectors. Use Class 2 output wiring. Figure 2.8 shows how to wire stereo speakers to the binding posts. Con- Figure 2
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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. The LCD Control Screen will light up (Figure 2.11). 2. Under the LCD Control Screen, press the Menu/Exit button. Press the Next button until you see OUTPUT MODE on the screen. 3. Press an Encoder knob to selec
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I-Tech Series Power Amplifiers 3 Operation 3.2 Startup Procedure 3.1 Protecting Your Speakers 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 sound bad, it can damage high-frequency drivers. To prevent clipping, Quick-Start Guide on page 4 (stereo) or page 5 (bridge-mono). 3
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F I-Tech Series Power Amplifiers 3 Operation 3.4 Front Panel Controls C. Level Controls (Encoders) clipping. The Clip Indicator also will illuminate dur- M. Ready Indicator and Indicators Speed-sensitive, 0.5 dB steps, range 0 to –100 dB. ing Thermal Level Control (TLC) limiting. Green LED, one per channel, illuminates when the These two knobs affect the Channel-1 and channel is initialized and ready to produce audio out- H. Thermal Indicator Channel-2 output levels. They also select Menu put.
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I-Tech Series Power Amplifiers 3 Operation 3.5 Back Panel Controls, Indica- OUTPUTS SECTION G. Reset Switch/Circuit Breaker NETWORKING SECTION tors and Connectors If the current draw of the amplifier exceeds safe J. Preset Indicator D. 4-Pole Speakon Output Connectors limits, this breaker automatically disconnects ® Yellow LED flashes to signal the number of the Two high-current, 50A Neutrik Speakon the power supply from the AC mains. The A. Fans current preset if active. NL4MLP (mates with
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I-Tech Series Power Amplifiers 4 Advanced Operation 4.1 Advanced Operation Table of Contents............16 4.2 Navigating the LCD Control Screen ...................... 17 4.6.6 Power/Standby Control .....................................................24 4.2.1 Introduction........................................................................ 17 4.6.7 Signal Mute .......................................................................24 4.2.2 Basic Menu......................
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I-Tech Series Power Amplifiers 4 Advanced Operation 4.2 Navigating the LCD Control Screen Mute/Unmute Some menu items require confirmation: after you request a change, � To mute either channel: Press and hold an Encoder knob for the display might say “Press and hold.” To confirm a change, press 4.2.1 Introduction 1 second. The display will alternate between MUTE and the attenua- and hold an Encoder knob. If you don't want the change to occur The LCD Control Screen and its controls let you con
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I-Tech Series Power Amplifiers 4 Advanced Operation Attenuator Link: Allows either attenuator (Encoder) to control Input Y: Press an Encoder knob to select STEREO or Input Y. You Presets: A preset is a group of DSP and amplifier settings for a particular speaker. Turn both channels. Push an Encoder knob to select Independent or will be prompted to confirm your choice. Press and hold an Encoder an Encoder to view Presets 1 through 20. To recall a preset, press the Encoder, then press Linked
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I-Tech Series Power Amplifiers 4 Advanced Operation Coarse Signal Delay: Sets the coarse signal delay in each chan- Peak Voltage Limiter: Limits the peak output voltage to a level AES/EBU Input Trim: Sets the gain of the AES/EBU digital input nel. Twist each channel’s Encoder knob to vary the delay. The delay that you set, either OFF or 0 to 255 volts. Press the Encoder to turn signal. Turn an Encoder to change the gain. step size is speed sensitive. on the Limiter. Once it’s on, turn the Enc
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I-Tech Series Power Amplifiers Bandpass Gain: In each channel of the I-Tech’s DSP, just before 4.2.4 MONITOR MENU Firmware Versions: Displays the firmware versions of the Dis- the output limiter and after the preceding filter, is a gain block (not This menu lets you monitor the status of the amplifier. Starting from play and DSP. The two may not always match. Go to shown on the Signal Path block diagram). Bandpass Gain adjusts the the Attenuation Screen, press Menu, then press Prev. Or, starti
