Description
Crown Audio Amplifier Rental – IT-12000 HD
Front-panel features include user-definable security and a USB connector for transferring presets between a USB drive and the amp’s DSP. A new software interface – based on customer feedback – manages presets, provides easier system-level changes, and includes a configuration wizard.
The I-Tech 12000 HD’s global power supply accepts 100-240VAC at 50/60 Hz (±10%), delivering maximum power no matter where your schedule takes you. The amp is also available in a stack of three in Crown Audio’s VRack.
Performance
Frequency Response (at 1 watt, 20 Hz – 20 kHz): ±0.25dB
Signal to Noise Ratio below rated full-bandwidth 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, compatible 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
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 Ω
Bridge Mono: 2/4/8 Ω
Input Sensitivity (referenced to 8 Ω rated output): 1.4V to 7.75V, adjustable in 0.1V steps
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
User adjustments
Attenuation and muting
Configuring the amp
Setting up and viewing error monitoring (such as temperature and load supervision)
IP and HiQnet addresses
DSP preset recall for quickly reconfiguring the amp for various applications
Level Controls (Encoders)
Speed-sensitive rotary encoders: 0 to –100 dB in 0.5 dB steps
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: Allows transfer of presets between a USB drive and the amplifier DSP.
Back Panel Connectors, Controls, and Indicators
Connectors
Balanced XLR analog inputs
Balanced analog XLR loop-thru outputs
AES/EBU digital input
AES/EBU digital loop-thru output
4-Pole Speakon output connectors
Binding post output connectors
EtherCon® Ethernet connector for networking via HiQnet or CobraNet.
Preset Indicator LED
Green if the preset values have not been changed once loaded.
Yellow if the preset values have been changed since they were loaded.
Flashes to signal the number of the current preset if active.
Electrical
Required AC Mains
Universal AC input, 100-240VAC, 50/60 Hz (±10%).
Maximum AC mains voltage: 264VAC
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.
Construction
Cooling: Dual-zone, microprocessor controlled, continuously variable speed fans, front-to-back airflow
