Acoustics and Cabinet Placement
There are several things to consider when placing loudspeaker cabinets. First determine the horizontal coverage requirements for XP the room. When used in a typical auditorium setting, position the speakers as shown in Fig. B. Ensure 70° adequate sound levels reach each seat in the audience by walking through the entire auditorium�listen for any gaps in coverage then reposition speakers as necessary. Recheck sound coverage with a full audience in attendance, if possible. Other considerations include FIG. B bass frequency Stage performance and XP feedback... When a XP speaker is placed near a wall, there 70° will a low-frequency boost of Audience up to 3dB. The drawback is that close proximity to a wall may also cause feedback. To avoid feedback: Increase the distance between speakers and the feedback source whether it is a wall, a microphone, or a guitar. Use cardioid�pattern microphones to help block feedback. Always keep microphones pointed away from speakers.
The XP Series horn has a horizontal coverage angle of 70º and a vertical coverage of 35º; bass speakers are nearly omnidirectional. When setting up FIG. C your XP Series XP XP enclosures as a �single unit,� aim 70° the cabinets 70° apart as shown in FIG. C, for 140° �o r ve of horizontal covfH o ori lC zonta erage.
a g e
Power and audio signal cables are a common sources of sound system failure. Quality cables, carefully maintained, are essential to the reliability of the entire sound system. Long cable connections or cables supplying multiple speaker cabinets must be of a sufficient gauge to transfer all of the available amplifier power to the speakers. As a rule, thicker cables (lower gauge numbers) are more efficient because they absorb less power themselves.
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Sound quality is often compromised when a sound system is required to be hidden from sight. Remember that the location of your loudspeaker cabinets will affect sound quality and coverage area more than any other factor.
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Speaker Cables
Prevent power loss and the degradation of signal quality by using the recommended cable gauges below. Cable that suppplys one cabinet, such as the cable to the last cabinet in a �daisy-chain�: � Up to 50-feet requires 18-gauge cable � Up to 100-feet requires 16-gauge cable Cable that suppplys two cabinets, such as the cable from the amp to the first cabinet in a �daisy-chain�: � Up to 25-feet requires 18-gauge cable � Up to 50-feet requires 16-gauge cable � Up to 100-feet requires 14-gauge cable
