Crown EOL Box End-of-line Terminator
Description
Crown EOL Box End-of-Line Terminator
The Crown EOL Box serves as a specialized end-of-line termination device for professional audio systems employing 20 kHz pilot tone detection. This compact unit sits at the far end of loudspeaker circuits to monitor circuit integrity in real time, detecting open and short conditions through measurable impedance changes. It's an essential tool for system designers and technicians maintaining large distributed speaker networks.
Circuit Detection & Load Management
The EOL Box operates reactively at 20 kHz, enabling current measurement through HiQnet Audio Architect™ software to identify circuit faults instantly. An external impedance switch allows selection between 10 Ω or 5 Ω loads at 20 kHz, providing flexibility to match system requirements and optimize detection sensitivity across different installation configurations.
Studio System Integration & Signal Preservation
Full compatibility with DCi Network amplifiers and the USP4 family of CTs amplifiers ensures seamless integration into Crown-based monitoring and recording systems. The DSP architecture in these amplifiers allows the 20 kHz pilot tone to bypass internal speaker processing, preserving audio fidelity while maintaining continuous circuit monitoring without audible artifacts—critical for maintaining clean, uncolored reference monitoring during tracking and mixing sessions.
Key Features
- Selectable impedance load: 10 Ω or 5 Ω at 20 kHz
- External impedance switch for load selection
- Reactive impedance at 20 kHz for current measurement
- Compatible with DCi Network amplifier family
- Compatible with USP4 family of CTs amplifiers
- Integrates with HiQnet Audio Architect™ software monitoring
- Pilot tone can bypass internal speaker processing via DSP
- Detects open and short circuit conditions in real time
- Placed at end-of-line position in loudspeaker circuits
- Supports 20 kHz pilot tone mixing with audio signal
The EOL Box provides studios and control room operators with reliable fault detection and circuit diagnostics, making it indispensable for maintaining professional monitoring installations and ensuring session continuity.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The Crown EOL Box is a specialized terminator for professional audio installations that detects circuit faults via 20 kHz pilot tone monitoring, integrated with HiQnet Audio Architect™ software for real-time diagnostics. It's designed for studio owners and engineers building or maintaining fixed installations where circuit integrity monitoring is critical to system reliability. Use it to safeguard your speaker network and catch wiring problems early without any audible impact on your recordings or monitoring.
Frequently Asked Questions
What does the EOL Box actually do?
The EOL Box terminates the end of a speaker circuit and continuously monitors it using a 20 kHz pilot tone to detect open and short circuit conditions in real time. It measures impedance changes and reports circuit status through HiQnet Audio Architect™ software, allowing you to spot faults instantly without interrupting audio.
Which Crown amplifiers does this work with?
The EOL Box is fully compatible with Crown DCi Network amplifiers and the USP4 family of CTs amplifiers. The DSP in these units allows the 20 kHz pilot tone to bypass speaker processing, so monitoring happens without any audible artifacts in your audio signal.
Can I adjust the load impedance?
Yes, an external impedance switch lets you select between 10 Ω or 5 Ω loads at 20 kHz to match your system's requirements and optimize fault detection sensitivity across different installation layouts.
Will the pilot tone affect my audio?
No. The 20 kHz pilot tone is inaudible and the DSP architecture in compatible Crown amplifiers routes it to bypass internal speaker processing, so circuit monitoring runs silently in the background without impacting your sound.
What's included in the box?
The EOL Box itself with the external impedance switch for load selection; it integrates with your existing Crown amplifier network and HiQnet Audio Architect™ software for monitoring and diagnostics.
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