Frequency Response ; Damping Factor; Common Mode Rejection - Page 41

T O U R I N G



SPECIFICATIONS

Summary Specifications

Frequency Response 

(at 1 watt, 20 Hz - 20 

kHz): ±0.25dB.

Signal to Noise Ratio below rated full-band-

width power, A-weighted:

 > 112 dB. 

Total Harmonic Distortion (THD) at full rated 

power:

 < 0.1%. 

Intermodulation Distortion (IMD)  60 Hz and 

7 kHz at 4:1, from full rated output to –35 dB: 

< 0.2%.

Damping Factor

 (20 Hz to 100 Hz at 8 ohms): 

 > 5000.

Crosstalk

 (below rated power,  20 Hz to 1 kHz): 

 > 80 dB.

Common Mode Rejection 

(CMR) (20 Hz to 1 

kHz): > 70 dB typical.

Latency

 (analog, digital inputs): 1.13 mS analog, 

1.81 mS digital (96 kHz).

A/D, D/A Converters:

 24-bit 192 kHz Cirrus 

Logic.

Digital Input: 

AES/EBU, 24-bit, 32-96 kHz. 

Onboard sample-rate converter. 

Network:

 Onboard TCP/IQ and HiQnet, compat-

ible with standard 100 Mb Ethernet hardware.

DSP: 

24-bit conversion with 32-bit, floating-

point DSP processing. World-class IIR and 

linear phase FIR filters. Has 64 assignable filters 

with 9 different filter types. Includes all-pass 

filters, over 2 seconds of delay available per 

channel, and dual uncorrelated-noise and sine-

wave generators.

Load Impedance:

 (Note: Safe with all types of 

loads) Stereo: 1/2/4/8/16 ohms. Bridge Mono: 

2/4/8 ohms.

Input Sensitivity 

(referenced to 8 ohm rated 

output): Adjustable in 0.1V steps from 1.4V to 

7.75V.

Required AC Mains: 

Universal AC input, 100-

240VAC, 50/60 Hz (±15%). Maximum AC mains 

voltage 277VAC.

AC Line Connector:

 Five cordsets supplied with 

amplifier (USA, UK, European, Australia, India).

Front Panel Indicators, Controls and 

Connectors

Indicators:

 Bridge mode, Ready, Signal level, 

Clip, Thermal error, Fault, Network data, Power, 

AC mains.

LCD Control Screen and Controls:

 These let 

the user adjust the amplifier’s attenuation and 

muting, configure the amp, set up and view 

error monitoring (such as temperature and load 

supervision), set IP and HiQnet addresses from 

the front panel, and recall DSP presets. The 

presets allow the user to quickly reconfigure the 

amp for various applications. 

Level Controls

 (Encoders): Speed-sensitive 

rotary encoders, 0.5 dB steps, range 0 to –100 

dB. These two knobs affect the Channel-1 and 

Channel-2 output levels. They also select Menu 

items and adjust parameter values that are 

displayed on the LCD Control Screen.

Power Switch:

 Push-on/push-off switch with 

built-in green AC mains present indicator.

USB 2.0 Connector:

 Accepts a USB drive to 

transfer presets from the drive to the amplifier 

DSP, and vice versa.

Back Panel Connectors, Controls, 

and Indicators

Connectors:

 Balanced XLR analog inputs, bal-

anced analog XLR loop-thru outputs, AES/EBU 

digital input, AES/EBU digital loop-thru output, 

4-Pole Speakon output connectors, binding 

post output connectors, power cord, EtherCon

®

Ethernet connector for networking via HiQnet or 

CobraNet.

Reset Switch/Circuit Breaker: 

If the current 

draw of the amplifier exceeds safe limits, this 

breaker automatically disconnects the power 

supply from the AC mains. The switch resets the 

circuit breaker.

Preset Indicator: 

LED flashes to signal the 

number of the current preset if active. LED is 

green if the preset values have not been changed 

once loaded. LED is yellow if the preset values 

have been changed since they were loaded. 

Construction

Cooling: 

Dual-zone, microprocessor controlled, 

continuously variable speed fans, front-to-back 

airflow.

Dimensions:  

19 in. (48.3 cm) W x 3.5 in. (8.9 

cm) H x 16.2 in. (41.1 cm) D.

Weight:

 28 lbs (12.7 kg) net, 36 lbs (16.3 kg) 

shipping.

Included Accessories:

 Rear rack ears, rack 

screws, operation manual, power cords, foam 

 air filter.

Regulatory Certifications

Other Applications

C

rown  continues  the  tradition  of  excellence  and  innovation  with  the  Crown

®

  I-Tech  HD  Series, 

delivering unmatched versatility, power and performance for touring sound applications. Featuring 

onboard high-definition BSS OMNIDRIVE

HD

™ DSP with 24-bit, 192 kHz Cirrus Logic SHARC A/D and 

D/A converters, the I-Tech HD Series also offers a new software interface that provides easier system-

level changes, and includes a configuration wizard. Providing up to 9 kW continuous power in a 2U rack 

space and delivering the highest output voltage in the industry, the I-Tech HD Series outperforms 

all 

the 

competition, even our own.

12/08                                                        141259-1