Radio Shack 32-2055 Quick Start Manual

Quick Start Guide

Step 1: Selecting a Location

Before you use your amplifier, be sure to place it on a
surface with adequate ventilation. Do not put it on thick
carpeting, which can restrict air flow, or near a heat
source such as a heat vent or radiator, which can cause it
to overheat.

Step 2: Preset the Controls

Preset the Audio Input Source
Audio Device Control Setting
Turntable Power Flat
Tape Deck Power Flat
CD Player Power Flat
Amplifier Power Flat
Receiver Tone Off
Presetting the Amplifier
Before you make any connections, be sure the amplifier is
turned off and AC power cord is not plugged in.
Mic, CD/AUX, and LEFT / RIGHT volume controls should
be set to minimum.
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All rights reserved. RadioShack and RadioShack.com are trademarks used by RadioShack Corporation.
250-Watt · Stereo
PA Amplifier
Connect up to
Connect up to MIC 4/
4 microphones
4 microphones PHONO
with ¼"
with 3 pin Switch
(6.35mm) plug
XLR plug to
Select MIC 4
Balanced to Unbalanced
or PHONO
Microphone
Microphone
input.
Inputs.
Inputs.
Connect low-level audio input source (e.g.
Turntable) to Phono Input Jacks
If you connect a low-level audio input source to
the PHONO jacks, set MIC4/PHONO to PHONO.
To avoid a low-level hum, connect your turntable's
ground wire (usually black or green) to the GND
terminal on the amplifier.
Illuminated
MIC 1, MIC 2, and MIC 3, MIC 4/PHONO
Power Switch
and CD/AUX
Lights up when
Adjust volume for the connected
you turn on the
microphones, turntable, CD or auxiliary
switch.
sound source.
32-2055
Step 3: Connecting Your Amplifier
Connect an equalizer or other
Connect stereo
external processor to EQ
input sources (CD
IN/OUT Jacks.
or DVD player,
TV, etc.) with ¼"
You can also connect a tape
(balanced) audio
deck to the EQ OUT jack for
cable to Stereo
recording.
Input Jacks.
Connect an extra Connect an auxiliary sound
amplifier to MIX source (CD, tape deck or
tuner) to Audio Input Jacks.
BUS Jack
Use a shield cable with
Use a shield cable
phono plugs at each end.
with phono plugs at
each end.
Step 4: Using Your Amplifier
FEEDBACK Left/Right speakers
FILTER
Volume Control
Turn to control Turn to regulate volume of
audio feedback. left and right speakers.
1. Connect your input source.
You can connect optional components, such as
microphones, tuner, turntable, audio mixer, preamplifier,
or CD player to your amplifier to expand your system.
To prevent hum and other noise, use low-capacitance
shielded cable (not supplied, available at your local
store or at www.radioshack.com).
: This amplifier is equipped with both stereo phono
input and ¼-inch (6.35 mm) jacks. The ¼-inch input jacks
on the top are stereo while the others are left and right
mono.
2. Connect your speakers.
Connect your speaker wire to the speaker terminals
matching their polarities, the positive (+) speaker wire to
the positive terminal (red) and the negative (–) speaker
wire to the negative speaker terminal (black).
To bridge the amplifier's channels:
• Speakers connected to the same channel ( or B) are
part of a pair and must be of the same impedance.
• Speakers connected to different channels (A or B) are
not part of a pair and can be different impedance.
3. Connect Power
Plug the power cord into a standard AC outlet.
1. Start the input sound source.
2. Make sure LEFT and RIGHT volume control on the the
amplifier are set to MIN.
3. Press POWER to turn on the amplifier.
4. Rotate LEFT and RIGHT volume controls to their
middle positions.
5. One at a time, adjust MIC1, MIC2, MIC3, MIC4/
PHONO, and CD/AUX to the desired volume and
balance.
If you hear feedback after you adjust these controls,
turn FEEDBACK FILTER clockwise until the noise
disappears.
6. Adjust LEFT and RIGHT volume controls to the
desired volume level after you find your desired
balance.
Printed in China
07A08
A
32-2055 A