Performance, Construction | Crown Audio I-TECH 6000, I-TECH 4000

Speciﬁcations

Performance

Frequency Response (at 1 watt, 20 Hz - 20 kHz):

±0.25dB.

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%.

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):

> 50 dB.

DC Output Offset (shorted input): < ± 3 mV.

Input Impedance (nominal): 20 kilohms balanced,

10 kilohms unbalanced.

Maximum Input Level: +15 dBu or +21 dBu, depending on input sensitivity.

Latency (analog, digital inputs): 1.13 mS analog, 1.81

mS digital (96 kHz).

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 TCP/IQ and HiQnet, compatible with standard 100 Mb Ethernet hardware.

DSP: 24-bit conversion with 32-bit, ﬂoating-point DSP processing. 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 Supervision: Monitors the average impedance on the output of the ampliﬁer. If the impedance falls outside the speciﬁed high/low limits, this function alerts the user via the front panel display, and via System Architect or IQwic™ software.

Error Reporting: Reports clip errors, thermal errors, fault conditions and load monitoring errors for each channel via the front panel display and via System Architect or IQwic software when amp is on a network.

Attenuators: Speed sensitive, continuously variable rotary encoder, 0.5 dB steps, range 0 to –100 dB.

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.

Voltage Gain (referenced to 8 ohm rated output):

I-T4000: 37.1 dB to 22.2 dB

I-T6000: 37.9 dB to 23.0 dB

I-T8000: 39.3 dB to 24.5 dB

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 Controls and Indicators

Bridge Mode Indicator: Yellow LED illuminates when the ampliﬁer is set to Bridge-Mono mode.

Ready Indicator: Green LED, one per channel, illuminates when the channel is initialized and ready to produce audio

output. Indicator is off when the ampliﬁer is in standby mode via the control software.

Signal Indicators: Three green LEDs per channel indicate the ampliﬁer’s input and output signal levels.

Signal: input signal is above –40 dBu.

–20 dB: ampliﬁer output is 20 dB below clipping.

–10 dB: ampliﬁer output is 10 dB below clipping.

Clip Indicator: Red LED, one per channel, illuminates when the channel’s output signal reaches the onset of audible clipping. The Clip Indicator also will illuminate during Thermal Level Control (TLC) limiting.

Thermal Indicator: Red LED, one per channel, illuminates when the channel has shut down due to thermal stress or overload.

Fault Indicator: Red LED, one per channel, ﬂashes when the ampliﬁer output channel has stopped operating.

Data Indicator: Yellow LED indicates network data activ- ity. Data indicator ﬂashes only when the ampliﬁer is polled for data, or is polled to see whether it is online

Power Indicator: Blue LED indicates ampliﬁer has been turned on and AC power is available. The LED will ﬂash when the AC line voltage is 15% above or below the nominal rated value.

AC Mains Present Indicator: Green indicator built into power switch indicates AC power is present at the power cord and the ampliﬁer circuit breaker is in the “on” position.

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 tem- perature and load supervision), and recall DSP presets. The presets allow the user to quickly reconﬁgure the amp for various applications.

LCD Control Screen: Integrated LCD with white LED backlight, controls ampliﬁer setup and operation.

Normal mode: Attenuation in 0.5 dB steps, Mute/ Unmute, Front Panel Lockout.

Basic Menu: LCD Contrast, CH1 Sensitivity, CH2 Sen- sitivity, Speaker Preset, Dual/Bridge mode, Input Y.

Advanced Menu: Attenuator Limits, Attenuator Link, Clip Limiter, Peak Voltage Limiter, Average Power Lim- iter, Pink Noise Generator, AES/EBU Input Trim, Input Source, Maximum Analog Input, Meter Display Type.

Monitor Menu: Speaker Load, Thermal %, AC Voltage, Operating Time, Firmware, Manufacturing Info, Net- working, Thermal Errors, Clip Errors, Low Limit Load Errors, High Limit Load Errors, Line Voltage Errors.

Menu/Exit Button: “Menu” enters the main menu. “Exit” gets out of the Menu.

Next Button: Selects the next item in the Menu.

Prev Button: Selects the previous item in the Menu.

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 param- eter values that are displayed on the LCD Control Screen.

Power Switch: Push-on/push-off switch with built-in green AC mains present indicator.

Back Panel Controls, Indicators and Connectors

Power Cord Connector: Standard 20 amp IEC inlet. Volt- age range is indicated above IEC inlet.

Reset Switch/Circuit Breaker: If the current draw of the

I-Tech Series

ampliﬁer exceeds safe limits, this breaker automatically disconnects the power supply from the AC mains. The switch resets the circuit breaker.

Output Connectors: Two high-current, 50A Neutrik® Speakon® NL4MLP (mates with NL4FC or NL4), one per channel. Two pairs of high-current, 60A color-coded 5- way binding posts (for banana plugs, spade lugs or bare wire). Two male XLR passive analog loop through. XLR active/re-clocked AES/EBU digital loop through.

Analog Input Connectors: A 3-pin female XLR connector for each channel.

Digital Input Connector: A 3-pin female XLR connector that accepts a digital signal in the AES/EBU format.

Network Connector: This Ethernet connector accepts an RJ-45 connector for TCP/IQ or HiQnet networking. Built into the connector is a yellow LINK ACT indicator that shows network activity, and a green 100Mb indicator that shows a 100Mb network connection.

Data Indicator: Yellow LED indicates network data activ- ity. Data indicator ﬂashes only when the ampliﬁer is polled for data, or is polled to see whether it is online.

Preset Indicator: Yellow LED ﬂashes to signal the number of the current preset if active.

Construction

Cooling: Dual-zone, microprocessor controlled, continu- ously variable speed fans, front-to-back airﬂow.

Front Panel: Cast aluminum with integrated handles.

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.

Crown International

1718 W. Mishawaka Rd.

Elkhart, IN 46517-9439 TEL: 574-294-8200 FAX: 574-294-8FAX

Customer Service: 800-342-6939 or 574-294-8200. www.crownaudio.com

Speciﬁcations subject to change without prior notice. Latest information available at www.crownaudio.com.

Crown Audio is a registered trademark of Crown International. HiQnet is a trademark of Harman International Industries, Inc. Other trademarks are the property of their respective owners. Printed in U.S.A.

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I-TECH 6000, I-TECH 8000, I-TECH 4000 specifications

Crown Audio's I-TECH series includes the I-TECH 4000, I-TECH 6000, and I-TECH 8000 amplifiers, renowned for their robust performance, reliability, and advanced technology. These amplifiers are specially designed for professional sound reinforcement applications, making them ideal for touring, installs, and audio production.

The I-TECH 4000, with a power output of 4,000 watts, delivers high efficiency and performance across a wide frequency range. It features Crown's proprietary DriveCore technology, which integrates the power amplifier and the signal processing in a single module, resulting in a compact design and substantial weight savings without compromising audio quality. Additionally, the I-TECH 4000 supports both analog and digital inputs, offering versatility for different audio setups. Its built-in DSP capabilities allow users to customize the sound with EQ, crossover, and delay functions, enhancing the overall audio experience.

Moving up the lineup, the I-TECH 6000 offers increased power output at 6,000 watts, making it perfect for larger venues that require extra headroom. It maintains the same advanced DriveCore technology, ensuring high fidelity and reliability. The I-TECH 6000 also includes advanced network control capabilities via the Harman Professional Network, allowing for remote monitoring and management. This makes it easier for sound engineers to fine-tune performances and ensure optimal operation during live events.

Finally, the I-TECH 8000 stands at the pinnacle of the series, providing a massive 8,000 watts of power. This amplifier is designed for the most demanding applications, capable of driving large speaker systems with ease. Similar to its siblings, it incorporates the DriveCore technology and extensive DSP features. The I-TECH 8000 also includes an enhanced cooling system, ensuring that it operates efficiently even under heavy loads. This amplifier is known for its superior dynamic range and low distortion, providing a clean and powerful sound that meets the expectations of professional audio engineers.

Overall, the I-TECH series, consisting of the I-TECH 4000, 6000, and 8000, epitomizes Crown's commitment to innovation and quality in audio amplification. Each model is engineered to deliver exceptional power, clarity, and control, making them a solid choice for any professional sound system setup. Whether for live events, installations, or audio productions, the I-TECH series amplifiers are designed to perform at the highest level, ensuring that sound professionals can always deliver the best auditory experience.