Crown Audio manual E R At I O N, VT-15 front panel controls and indicators

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4 .

O P E R AT I O N

INITIAL SET-UP IS CRITICAL

for getting the best performance from your VT-15!

The VT-15 has tremendous versatility, but with that versatility comes the potential for for very unpleasant sound. Think of the VT-15 as a small studio chain in one box: mic preamp, com- pressor, and equalizer. In most studios, these would be three separate pieces of equipment and you would patch them together in a chain feeding your recorder. The VT-15 is the same concept, except that the “patching” is done inside the VT-15. And just like a bad gain struc- ture in your mic pre/comp/eq will seriously degrade the performance, the same is true with the VT-15. Improper gain structure, in the VT-15 or in separate units, will increase the noise, reduce the headroom, and increase distortion. So follow these steps for the initial set-up of the VT-15. They provide the proper starting point, and optimize the gain structure for best performance.

Figure 1. VT-15 front panel controls and indicators

A Note about Powering Down the VT-15

Because the VT-15 is designed so that the most often used settings do not energize the cor- responding internal switching relay, when you turn off the power to the unit, it will revert to the Mic input, whether you were using Mic or Line. If you are feeding a line-level signal into the VT-15, removing the power will immediately switch it to Mic input. Since the tube fila- ments and power supplies will continue to operate for about 20 seconds after power is turned off, the level could increase significantly during that time. Be sure to turn down the Preamp Gain control before turning off the Power switch. Or make sure that the VT-15 will not be feeding your monitors on shut-down. This will not hurt the VT-15, but it could damage your hearing or your speakers if the level were to suddenly jump 50dB!

VT-15 Recording Channel

D.W. FEARN

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Contents Fearn How to Contact us Certificate of RoHS Compliance FearnPage VT-15 Vacuum Tube Recording Channel Final Test Report List of Illustrations B l e o f C o n t e n t sCopyright 2007 D.W. Fearn & Associates Limited 5-Year Warranty History of the VT-15 Vacuum Tube Recording Channel Fearn E C I F I C AT I O N S E C I F I C AT I O N S C O N T ’ D S C R I P T I O N Fearn S TA L L AT I O N PowerGrounding and Shields Input and Output ConnectionsE R AT I O N VT-15 front panel controls and indicatorsControl Set-up Output Mic InputOntrols see Figure Compressor Controls Equalization Controls Initial Set-Up Benc h TestFearn Preamp Section E O RY O F O P E R AT I O NCompression Section VU Meter and Meter Amplifier Fearn I N T E N a N C E VU Meter Calibration Factory Check-Out TroubleshootingWarranty Repair

VT-15 specifications

The Crown Audio VT-15 is a robust loudspeaker system that has gained recognition for its advanced technologies and impressive audio performance, making it ideal for various applications, including live events, installations, and broadcast scenarios. Built with durability and sound quality in mind, the VT-15 serves both professionals and enthusiasts in the audio industry.

One of the standout features of the VT-15 is its high-efficiency design, which is achieved through advanced driver technology. The loudspeaker is equipped with a premium 15-inch woofer that delivers powerful low-end reproduction, ensuring a solid bass presence that enhances the overall listening experience. This, combined with a high-frequency compression driver that operates at 1 inch, ensures clear and articulate treble frequencies, resulting in a balanced sound profile suitable for different musical genres.

The VT-15 incorporates Crown’s patented Waveguide technology, designed to provide consistent and controlled sound dispersion. This feature allows the loudspeaker to effectively cover large areas without experiencing significant drop-off in audio fidelity, making it a great choice for medium to large venues. The controlled directivity also means that listeners in various positions within the space can enjoy a similar audio experience, enhancing the performance of any event.

Another defining characteristic of the VT-15 is its rugged construction. Built with a reinforced enclosure, it is designed to withstand the rigors of touring and heavy use in fixed installations. The cabinet is constructed from high-quality materials that minimize vibration and resonance, further contributing to the clarity of sound. Its lightweight design allows for easier transport and setup, making it a practical choice for audio professionals on the go.

In terms of connectivity and compatibility, the VT-15 features versatile input options, allowing it to integrate seamlessly with various audio systems. Whether used in conjunction with other Crown products or compatible equipment from different brands, the VT-15 ensures flexibility in configuration.

Overall, the Crown Audio VT-15 stands out as a high-performance loudspeaker that combines advanced technologies, durability, and sound fidelity. Its powerful drivers and innovative design make it a reliable choice for any professional audio application, providing users with the quality and performance they demand. Whether for live music, presentations, or installations, the VT-15 delivers exceptional audio experiences that elevate any event or setting.
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