I-Tech Series Power Amplifiers

9 Appendix A: Network Basics

9.1 TCP/IQ and HiQnet Networks

Background: A Local Area Network (LAN) is a group of computers in a venue that share data, either through cables or via wireless transmission. Ethernet is a popular LAN communication protocol for PCs. An audio network is a Local Area Network made of audio devices and one or more computers. A subnet is a small network within a larger network. For example, an audio network might have two subnets: one for enter- tainment audio, and one for paging.

One use of an audio network is to control and monitor power amplifiers on stage from a computer at Front-of-House. You can set amplifier levels, adjust crossovers, measure speaker impedance, check for overheating and clipping, all from the house mixing con- sole.

You need a way to send computer commands to several audio devices at once. This is done with an Ethernet switch, which is something like an audio Y cable or distribu- tion amp. The computer, and all the audio devices, connect to the switch as in Figure 9.1.

TCP/IQ is a network protocol that allows you to control and monitor certain Crown and BSS audio products on an Ethernet network. HiQnet lets you control and monitor cer- tain Harman products (including Crown) on an Ethernet network. Figure 9.1 shows a typical HiQnet or TCP/IQ network.

TCP/IQ and HiQnet audio networks offer many advantages:

•Use of “off-the-shelf” network hardware. TCP/IQ and HiQnet use standard hardware commonly used in the computer industry, making it both low-cost and readily available.

•Better Performance. Meters display faster in realtime because the network is wide bandwidth.

HiQnet and TCP/IQ provide these functions:

•Quickly find all HiQnet components connected to the network.

•Synchronize multiple control points on a network.

•Control and monitor components on different Local Area Networks (LANs) through the use of an IP router (explained later).

•Upgrade firmware via the network.

Computer

Laptop

PS8810

I-T4000

I-T4000

I-T6000

I-T6000

I-T8000

100Mb Switch

Figure 9.1 A HiQnet or TCP/IQ Network

Operation Manual

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Crown Audio I-Tech Series operation manual Appendix a Network Basics, TCP/IQ and HiQnet Networks
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I-Tech Series specifications

The Crown Audio I-Tech Series represents a pinnacle of power amplification technology, designed to meet the demanding needs of live sound reinforcement and installation applications. Renowned for their flexibility, efficiency, and sound quality, these amplifiers integrate cutting-edge features that appeal to both professional audio engineers and musicians alike.

One of the key technologies employed in the I-Tech Series is the use of DriveCore technology. This innovative design allows the amplifiers to achieve high power output while minimizing size and weight. The DriveCore technology combines the efficiency of Class D amplification with superior sound quality, yielding a lightweight solution that maintains high fidelity and low distortion even at peak volumes.

The I-Tech Series amplifiers come equipped with a comprehensive suite of digital signal processing (DSP) capabilities. Each amplifier integrates sophisticated DSP algorithms that enable advanced speaker management, including extensive equalization, delay settings, and limiting controls. This ensures optimal performance for a variety of loudspeakers and installation scenarios, allowing users to tailor the output to the specific acoustical environment.

Connectivity is another strong point for the I-Tech Series. The amplifiers often include a variety of input options, providing flexibility for different setups, whether analog or digital. The inclusion of Ethercon connectivity enables seamless integration into a networked environment, allowing for remote control and monitoring via Crown's sophisticated software interface. Users can access real-time data about the system's performance, making adjustments on-the-fly to maintain optimal sound quality.

Durability and reliability are fundamental characteristics of the Crown I-Tech amplifiers. Built to withstand the rigors of touring and the demands of permanent installations, these amplifiers are housed in rugged enclosures that dissipate heat effectively while maintaining a compact form factor. Integrated protection circuits safeguard against over-temperature, over-current, and short-circuits, ensuring longevity even under extreme conditions.

In terms of power output, the I-Tech Series features a range of models, each capable of delivering substantial wattage to drive large sound systems with authority. The efficient cooling design allows for extended use without compromising performance, making them suitable for both large concerts and smaller venues.

In summary, the Crown Audio I-Tech Series amplifiers combine advanced technologies, including DriveCore and flexible DSP, to deliver powerful and high-quality audio performance. Their robust design, comprehensive connectivity options, and tailored control make them a premier choice for audio professionals seeking reliable and effective amplification solutions.
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