Safety Indicators; Monitoring The Sound Sources; Listening Safely; Using An Equalizer - Radio Shack MPA-125 Owner's Manual

32-2003.fm Page 13 Tuesday, March 28, 2000 10:45 AM

SAFETY INDICATORS

Your amplifier has two indicators that warn you of potential damage to the amplifier.
The CLIPPING indicator lights when a sound source's signal exceeds its mixing control setting.
If this happens, reduce the level of the appropriate mixing control or reduce
until the indicator flickers only at peak volume levels.
The PROTECTION indicator lights if the amplifier gets too hot because of a power overload.
The amplifier's built-in protection circuit temporarily interrupts the amplifier's power. If this hap-
pens, press to turn off the amplifier, let the amplifier cool for about 15 minutes, and cor-
POWER
rect whatever caused the overload. Then press
Note: If the power does not immediately come on, turn off the power again, wait about 5 more
minutes, then press
POWER
MONITORING THE SOUND
SOURCES
To monitor the sound sources, plug a pair of
mono or stereo headphones (not supplied)
1
with a / -inch (6.35-mm) plug into the
4
jack on the front of the amplifier.
PHONES
Using headphones lets you easily check and
adjust the sound source's balance. Your lo-
cal RadioShack store carries a wide selec-
tion of headphones.

Listening Safely

To protect your hearing, follow these guide-
lines when you use headphones.
• Set the volume to the lowest setting
before you begin listening. After you
begin listening, adjust the volume to a
comfortable level.
POWER
again.
• Do not listen at extremely high volume
• Once you set the volume, do not

USING AN EQUALIZER

If you connected an equalizer, set
PASS
Note: If the equalizer has a bypass switch,
be sure it is set to OUT or turned off. Other-
wise, the equalizer has no effect on your sys-
tem's sound.
Connections
CLIPPING Indicator PROTECTION Indicator
MASTER VOLUME
again to turn on the amplifier.
levels. Extended high-volume listening
can lead to permanent hearing loss.
increase it. Over time, your ears adapt
to the volume level, so a volume level
that does not cause discomfort might
still damage your hearing.
on the back of the amplifier to
EQ/BY-
.
EQ
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