Owner's manual

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I-Tech HD Series Power Ampliﬁers I-Tech HD Series Power Ampliﬁers

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Operation ManualOperation Manual

Welcome

This is the Crown

I-Tech HD Series offers amazing power, light weight and ease of use for touring sound

applications. Unlike other ampliﬁers, it includes onboard high-deﬁnition DSP, an LCD control screen, and a built-

in network connection.

Modern power ampliﬁers are sophisticated pieces of engineering capable of producing extremely high power

levels. They must be treated with respect and correctly installed if they are to provide the many years of reliable

service for which they were designed.

In addition, I-Tech Series ampliﬁers include a number of features which require some expla nation before they can

be used to their maxi mum advantage.

Please take the time to study this manual so that you can obtain the best possible service from your ampliﬁer.

Get Started

Features

1. Global Power Supply with PFC (Power Fac tor Correction) works anywhere in the world.

2. High power density, up to 8000 watts in a 2U chassis.

3. Highest output voltage in the industry (200V peak) provides clean transient peaks.

4. 3rd-generation patented Class I (BCA

) cir cuitry couples power

efﬁciently to the load and provides low AC current draw.

5. Onboard high-deﬁnition DSP with 24-bit, 192 kHz Cirrus Logic SHARC A/D

and D/A converters. Advanced IIR ﬁlters and linear-phase FIR ﬁlters.

6. Pushbutton presets simplify setup. Custom presets for various loudspeakers can be down loaded.

7. AES/EBU digital audio input.

8. EtherCon

Ethernet con nector for HiQnet™ control or CobraNet digital audio transport. This “Single

Plug” connection allows HiQnet protocol and CobraNet digital audio through the same CAT 5 cable.

9. Analog and digital thru connectors.

10. LCD Control Screen is used to adjust the ampliﬁer’s attenuation and muting, conﬁgure the amp, set

up and view error monitoring, and recall DSP presets to reconﬁgure the amp for various applications.

11. Comprehensive array of indicators provide accurate diagnostics: Power, Data, along with Ready,

Signal, Clip, Thermal and Fault for each channel.

12. AC mains indicator in power switch glows green when AC power is present.

13. Front-panel USB connector accepts a USB drive to transfer presets from the drive to the

ampliﬁer DSP, and vice versa.

14. Light weight due to aluminum chassis, spe cial internal construction and switching power supply.

15. Thermal management controller and two dis crete thermal zones with variable-speed fans,

forced-air cooling.

16. Advanced protection circuitry guards against: shorted outputs, DC, mismatched loads,

general overheating, under/over volt age, high-frequency overloads and internal faults.

17. Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its

speciﬁcations.

Unpack and Install Your Ampliﬁer

When 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. Save the shipping carton as evidence of damage for the shipper’s

inspection.

We also recommend that you save all packing materials so you will have them if you ever need to transport the

unit. Never ship the unit without the factory pack.

YOU WILL NEED (not supplied):

1. Input wiring cables

2. Output wiring cables

3. Ethernet cables

4. Rack for mounting ampliﬁer (or a stable surface for stacking)

WARNING: Before you start to set up your ampliﬁer, make sure you read and observe

the Important Safety Instruc tions found at the beginning of this

manual.

CAUTION: Before you begin, make sure your ampliﬁer is disconnected from the power

source, with the power switch in the “off” position and all level controls turned

completely down (counterclock wise).

Use a standard 19-inch (48.3 cm) equipment rack

(EIA RS-310B).

You may also stack amps without using a

cabinet.

NOTE: When transporting, ampliﬁers should be

supported at both front and back.

Setup

1.5 In.

3.8 cm

3.5 In.

8.9 cm

16.2 In.

41.1 cm

48.3 cm

19 In.

Magnetic Field

CAUTION! Do not locate sensitive high-gain equipment such as preampliﬁers or tape decks directly

above or below the unit. Because this ampliﬁer has a high power density, it has a strong magnetic

ﬁeld which can induce hum into unshielded devices that are located nearby. The ﬁeld is strongest

on the right side and right bottom of the ampliﬁer (facing the ampliﬁer).

If an equipment rack is used, we recommend locating sensitive equipment at least 20 cm

(8 inches) away from the ampliﬁer.

When using an equipment rack, mount units directly on top of each other. Close any open spaces in rack with

blank panels. DO NOT block front or rear air vents. The side walls of the rack should be a minimum of two inches

(5.1 cm) away from the ampliﬁer sides, and the back of the rack should be a minimum of four inches (10.2 cm)

from the ampliﬁer back panel.