Galaxy Audio HOT SPOT VC Посібник користувача - Сторінка 4
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a lot of power). Distortion may also originate with a bad signal source (tape, microphone, etc).
Low Frequency Distortion
The 5 inch driver will not reproduce tones lower than 200 Hz. If the
speaker begins to distort, reduce the low frequencies by
adjusting the LOW tone control. As a monitor the
HOT SPOT does a great job in conjunction with
the house stack where the low frequencies are
reproduced.
MAXIMIZING GAIN
Figure 1.1
Figure 1.1 represents the worst possible case of
gain limiting; the microphone is pointed directly at
the speaker. Any increase in volume will instantly
1
/
produce feedback. As little as
of the amplifier's pow-
1000
1
/
er may be available; with a 100 watt amplifier, that's only
10
of a watt. In Figure 1.2 , the distance between the microphone
and the speaker has increased to 500 feet, allowing 100 percent gain (all 100 watts of power may be
utilized without producing feedback). Of course, these are extremes, but they illustrate the importance of speaker and mi-
crophone placement in determining the gain of the system. In most cases it's not possible to locate the microphone 500
feet from the speakers.
The challenge is to position the speakers to adequately cover the listening area while positioning the microphone to maxi-
mize the gain.
Figure 1.2
3