5
OPERATION
1. Rotate
MASTER
to
MIN
.
2. Press
POWER
up to turn on the
MPS-50. The POWER indicator
lights.
3. Adjust the sound for each channel
where you have connected an input
source.
• Rotate
GAIN
clockwise toward
MAX
to increase the volume, or
counterclockwise toward
MIN
to
reduce it.
• Rotate
BASS
clockwise toward
MAX
to increase the low fre-
quency sounds, or counterclock-
wise toward
MIN
to reduce them.
• Rotate
TREBLE
clockwise toward
MAX
to increase the high fre-
quency sounds, or counterclock-
wise toward
MIN
to reduce them.
• Rotate
DISTORTION
until you hear
the amount of distortion you want.
• Press
REVERB
in on each chan-
nel where you want to apply
reverb effects. Then rotate
REVERB LEVEL
toward
MAX
to
increase the amount of reverb, or
toward
MIN
to lower it.
4. To turn the MPS-50 off, press
POWER
down.
USING HEADPHONES
To listen privately, connect low-imped-
ance headphones (available at your lo-
cal RadioShack store) with a
1
/
4
-inch
(6.35 mm) phone plug to the
PHONES
jack on the back of the MPS-50.
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 vol-
ume 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 vol-
ume level that does not cause dis-
comfort might still damage your
hearing.
MI
MA
OFF
MA
MI
MI
MA
MI
MA
MI
MA
MI
MA
MI
MA
MI
MA
ON OFF
ON OFF
GAIN
BASS
TREBLE
REVERB
GAIN
BASS
TREBLE
HIGH
LOW
REVERB
REVERB
LEVEL
DISTORTION
MAS
CHANNEL 1
CHANNEL 2
INPUT
HIGH
LOW
INPUT
MI
MA
MI
MA
GAIN
BASS
HIGH
LOW
CHANNEL 1
INPUT
MI
MA
MI
MA
GAIN
BASS
HIGH
LOW
CHANNEL 2
INPUT
CAUTION
RISK OF ELECTRIC
DO NOT OPEN
GUITAR AMPLIFIER
POWER SUPPLY: ~120V 60Hz 150W (FUSE 2A
250V)
Custom Manufactured in China
for RadioShack , A Division of Tandy
Corporation, Fort Worth, TX 76102
CAT. NO. 32-2046
MPS-50
R
115703
COMMERCIAL AUDIO
EQUIPMENT
CAUTION TO PREVENT ELECTRIC SHOCK DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD
RECEPTACLE
~120V AC 60Hz
150W
FUSE 2A
250V
CAUTION DISCONNECT SUPPLY CORD BEFORE CHANGING
CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE
ONLY
POWER
PHONES
LINE
OUT
RETURN
SEND
REVERB
REMOTE
PHONES
32-2046.fm Page 5 Monday, January 24, 2000 12:33 PM