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6.Adjust the Eq controls for the desired sound. (Remember to use the Boost and Cut togeth- er to shape the sound.)

7.Switch the VU meter back to the VU position.

8.Adjust the Gain control for a normal indication. Peaks should rarely go into the red (0VU).

This procedure will provide you with the optimum gain structure in the VT-15. Headroom will be maximum and noise will be minimum.

After the initial set-up, you can fine-tune the controls for exactly the sound you are looking for. However, you will rarely have to change the Preamp Amp gain after the initial set-up.

Here is detailed information on the VT-15 controls:

Mic Input

Since the input cable will be carrying very low level audio, it is important that a well-shield- ed cable is used. There should be no additional connectors, patch jacks, switches, etc. between the microphone and the VT-15 input. This can be achieved with a dedicated line from an XLR connector in the studio to each VT-15 in the control room. Although long input cable runs have little effect on the performance of the VT-15, it is preferable to keep the input line as short as possible. Avoid locating the VT-15 where it will be subjected to high sound lev- els or excessive vibration (such as on a drum riser).

Line Input

The Input connector can also accept a line-level (+4dBm, balanced, 600-ohm nominal) signal. The front panel “Mic/Line” switch should be in the “Line” position. A line-level signal into the VT-15 while the unit is set for “Mic” will result in very high level and extreme distortion. Although this will not harm the VT-15, it could be dangerous to your speakers and your ears! So make sure the switch is set appro- priately before making the connections.

Many of the other switches are usable while in the “Line” position. The “-20” pad in particular may be useful if the input signal has a higher-than-normal level. The “150/Lo-Z” and “+48” switches are locked out in the “Line” position. The “Phase” switch is still active and may be useful.

Instrument Input

The “Mic/Inst” switch changes the input source from the read-panel XLR connector to the front panel one-quarter inch “Inst” input. This jack is used for recording electric instruments such as electric bass, electric guitar, electronic keyboards, etc. Any device that would normally be plugged into a guitar amp or DI box will properly match the VT-15 “Inst” input.

Output

The output of the VT-15 is line level, transformer balanced. Note that vacuum tube equip- ment is more sensitive to load impedance than solid state units. The VT-15 design was opti-

mized for feeding a balanced bridging input (20k ohms or greater). When feeding a 600 ohm load, there may be a slight degradation of some of the specifications. In modern studio equip- ment, bridging line inputs are universal. If the device being fed by theVT-15 has an input termi- nation switch, that switch should be in the “off” position.

The VT-15 can feed balanced or unbalanced inputs with no need for any modification in out- put wiring. Either pin 2 or 3 can be grounded, although pin 2 is normally used as the ”hot” and pin 3 grounded in unbalanced configurations.

VT-15 Recording Channel

D.W. FEARN

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Crown Audio VT-15 manual Mic Input, Output
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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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