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CONNECTING A SOUND
SOURCE
Use a phono cable with a
plug (such as RadioShack Cat. No. 42-2473
or 42-978, not supplied) to connect an electric
guitar, keyboard, or microphone to the
jack on the amplifier.
Caution: Be sure to turn
you connect or disconnect a guitar's cable to
the amplifier.
Note: For a smaller keyboard, you might need
1
1
a
/
-inch to
/
-inch plug adapter (Cat. No.
8
4
274-367).
CONNECTING HEADPHONES
To listen privately or to monitor the sound
source, connect low-impedance headphones
1
(not supplied) with a
/
-inch (6.35 mm) plug to
4
the
jack on the amplifier. Your local
PHONES
RadioShack store sells a wide selection of
headphones.
Listening Safely
• To protect your hearing, follow these
guidelines 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.
• Do not listen at extremely high volume
levels. Extended high-volume listening
can lead to permanent hearing loss.
• Once you set the volume, do not 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.
CONNECTING TO POWER
Make sure
is set to
VOLUME
the AC power cord to a standard AC outlet.
1
/
-inch (6.35 mm)
4
INPUT
to
before
VOLUME
0
, then connect
0
2
TURNING POWER ON/OFF
1. Turn
to
.
VOLUME
0
2. Press
up to turn on the amplifier.
POWER
The power indicator lights.
3. Press
down to turn off the ampli-
POWER
fier.
ADJUSTING THE SOUND
Rotate
clockwise to boost or counter-
TREBLE
clockwise to cut high-range (treble) frequen-
cies (around 5 kHz). Boosting treble gives
your sound a clear high tone.
Rotate
clockwise to boost or counter-
BASS
clockwise to cut low-range (bass) frequencies
(around 80 Hz). Boosting the bass gives you a
heavier low tone.
Rotate
clockwise to boost or counter-
MID
clockwise
to
cut
midrange
(around 800 Hz). Boosting the midrange gives
you a harmonic-rich sound.
Rotate
clockwise to increase or
VOLUME
counterclockwise to decrease the volume.
Rotate
until you hear the amount
DISTORTION
of distortion you want.
Here are examples of how to use the control
settings for different sounds. Experiment with
the settings until you find the combination that
best suits your style.
Heavy
Metal
10
Distortion
8
Volume
10
Treble
Mid
10
Bass
10
frequencies
Rock
Clear
2
OFF
6
5
7
6
5
6
5
7
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