Fender 115XP Інструкція з експлуатації - Сторінка 3
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A A
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A A
c c
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There are several things to
consider when placing loud-
speaker
cabinets.
determine
the
horizontal
coverage requirements for
the room. When used in a
typical auditorium setting,
position the speakers as
shown in Fig. B.
Ensure
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 nec-
essary. Recheck sound coverage with a full audi-
ence in attendance, if possible.
The XP Series horn has a horizontal coverage
angle of 70º and a vertical coverage of 35º; bass
speakers
are
nearly
o m n i d i r e c t i o n a l .
When setting up
FIG. C
your
XP Series
enclosures as a
"single unit," aim
the cabinets 70°
apart as shown in
FIG. C, for 140°
of horizontal cov-
erage.
Power and audio signal cables are a
common sources of sound system fail-
ure. 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, thick-
er cables (lower gauge numbers) are
more efficient because they absorb less
power themselves.
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First
XP
70°
XP
70°
S S
p p
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a a
k k
S S
p p
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a a
k k
using the recommended cable gauges below.
Cable that suppplys one cabinet, such as the cable to the last
cabinet in a "daisy-chain":
Cable that suppplys two cabinets, such as the cable from the
amp to the first cabinet in a "daisy-chain":
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c o
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m
C C
a a
b b
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P P
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C C
a a
b b
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P P
l l
FIG. B
Stage
Audience
a wall may also cause feedback.
To avoid feedback:
between speakers and the feedback source
whether it is a wall, a microphone, or a guitar. Use
cardioid–pattern microphones to help block feed-
back.
XP
e e
r r
C C
a a
b b
l l
e e
s s
e e
r r
C C
a a
b b
l l
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s s
Prevent power loss and the degradation of signal quality by
• Up to 50-feet requires 18-gauge cable
• Up to 100-feet requires 16-gauge cable
• Up to 25-feet requires 18-gauge cable
• Up to 50-feet requires 16-gauge cable
• Up to 100-feet requires 14-gauge cable
3
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Other considera-
tions
bass
performance and
XP
f e e d b a c k . . .
When
speaker is placed
near a wall, there
will
70°
quency boost of
up to 3dB.
drawback is that
close proximity to
Increase the distance
Always keep microphones
pointed away from speakers.
Sound quality is often compro-
mised when a sound system is
required to be hidden from
sight.
Remember that the
location of your loudspeaker
cabinets will affect sound qual-
ity and coverage area more than
any other factor.
r g
g e
e a
a r
r h
h e
e a
a d
include
frequency
a
XP
a
low-fre-
The
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