AMPLIFIERS

Crown I-Tech 4000

Introduction
Features
Specifications

Introduction

The Crown I-T4000 is a two-channel power amplifier designed for professional touring sound or fixed installation use. The unique hybrid design of the I-T4000 melds the high power, high output voltage, and clean transient response of a huge, heavy, old-school power amp, with onboard programmable DSP dynamics processing, computer networking capability, digital connectivity, and 24-bit/96 kHz A/D - D/A converters. All of which is packed into a lightweight 2 RU chassis of aluminum construction, weighing only 28 lbs. The rear panel of the I-T4000 is largely devoted to color-coded connector groups, all separately grouped and clearly labeled, which certainly simplifies the setup process.

Features

Specifications

Introduction
Features
Specifications

Features

Global Power Supply – designed to deliver maximum power no matter where your schedule takes you
Studio Quality Processing – integrated processing reduces DSP noise for a quieter overall system
Peak voltage and RMS power limiting protects your speaker investment
Front panel LCD provides diagnostics and preset selection to ensure fast and easy system setup
Front panel lockout – ensures that tunings and presets are safely stored and protected from curious users
Remote monitoring and control for complete system control anywhere in the venue

Introduction

Specifications

Introduction
Features
Specifications

SPECIFICATIONS

Input Sensitivity (volts RMS) for rated output	Adjustable in 0.1V steps from 1.4V to 7.75V
Voltage Gain for full rated power at 8 ohms	37.1 dB to 22.2 dB
Frequency Response (at 1 watt, 20Hz - 20 kHz)	± 0.25 dB
Signal to Noise Ratio below rated full-bandwidth power, A-weighted	> 105 dB
Total Harmonic Distortion (THD) at full rated power	< 0.35%
Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1, from full rated output to –35 dB	< 0.35%
Maximum Input Level	+15 dBu or +21 dBu, depending on setting of maximum input level
Latency (analog, digital inputs) Analog	1.13 mS.
A/D, D/A Converters	24-bit 96 kHz Cirrus Logic
Digital Input	AES/EBU, 24-bit, 32-96 kHz. Onboard sample rate converter.
Network	Onboard HiQnet and TCP/IQ, compatible with standard 100Mb Ethernet hardware

DSP	24-bit conversion with 32-bit, floating-point DSP processing
Attenuators	Speed-sensitive rotary encoders, 0.5 dB steps, range 0 to –100 dB
Damping Factor (8 ohms)	20 Hz to 100 Hz: > 5000
Crosstalk (below rated power, 20 Hz to 1 kHz)	> 80 dB
Common Mode Rejection (CMR) (20 Hz to 1 kHz)	> 50 dB
DC Output Offset (Shorted input)	< ± 3 mV
Input Impedance (nominal)	20 kilohms balanced, 10 kilohms unbalanced
Stereo	1-2-4-8-16 ohms
Bridge Mono	2-4-8 ohms
Required AC Mains	Universal AC input, 100-240VAC (±15%), 50/60 Hz. Max. AC mains voltage 277VAC

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