Radio Shack 32-2055 User Manual

Thank you for purchasing your 250-Watt • Stereo PA Amplifier from
RadioShack. This PA gives you the versatility and power you need in a
professional sound system. Its wide frequency response easily handles
amplification of voice and music. Use it anywhere you need to deliver
special announcements with excellent sound. It is perfect for meeting halls,
auditoriums, sporting events, schools, or in the office for paging systems.
With a bridged speaker connection, the amplifier can produce up to 350
watts of clean, powerful sound with minimum distortion.
32-2055
www.radioshack.com
PA Amplifier
User’s Guide
Quick Start Guide
250-Watt • Stereo
PA Amplifier
What’s Included

Radio Shack 32-2055 Specifications

General

Brand	Radio Shack
Model	32-2055
Category	Amplifier
Language	English

Summary

Important Safety Instructions

General Safety Precautions

Essential guidelines for safe operation, handling, and maintenance of the amplifier.

About Your Amplifier

Amplifier Features Overview

Detailed description of front and rear panel controls, jacks, and indicators.

Amplifier Setup

Getting Started and Initial Setup

Steps for selecting a location and presetting controls before use.

Connecting Input Sources

Guidance on connecting various audio devices like microphones, turntables, and CD players.

Connecting Microphones

Instructions for connecting up to four high or low-impedance microphones.

Connecting a Turntable

How to connect a turntable to the PHONO jacks and ground terminal.

Connecting an Auxiliary Sound Source

Guide for connecting high-level sound sources to the CD/AUX jack.

Connecting the MIX BUS Jack

How to connect another amplifier to expand the PA system.

Connecting an Equalizer

Connecting an equalizer or other external signal processor to EQ jacks.

Connecting Speakers

Instructions on connecting speakers, determining impedance, and wiring configurations.

Determining Total Speaker Impedance

How to calculate total speaker impedance for series/parallel connections.

Preparing the Speaker Wires

Guidance on selecting wire gauge and preparing speaker wire ends.

Connecting Two Speakers in Series

Method for connecting speakers in series, including impedance calculation.

Connecting Two Speakers in Parallel

Method for connecting speakers in parallel, including impedance calculation.

Unbridged Connection

How to connect speakers for standard stereo or mono operation.

Bridged Connection

How to connect speakers for high power output using bridged mono mode.

Connecting Power

How to connect the amplifier to a power source and information about the fuse.

Operating Your Amplifier

Beginning Steps and Operation

Initial steps to turn on and operate the amplifier, including volume adjustment.

Monitoring Sound Sources

How to use headphones to monitor audio input and check sound balance.

Listening Safely

Guidelines to protect hearing during headphone use and volume adjustments.

Using the Feedback Filter

How to reduce or eliminate squeal and noise caused by feedback.

Using Level Meters and Clipping Indicator

Understanding output indicators and the clipping indicator for optimal levels.

Using Speaker A/B

How to select which set of speakers (A or B) to listen to.

Additional Information

Care, Service, and Fuse Replacement

Instructions for maintaining the amplifier, seeking service, and replacing the fuse.

Troubleshooting Common Issues

Solutions for problems like no power, no sound, or feedback.

Product Specifications

Technical details including impedance, power output, input sensitivity, and dimensions.

Recommended Accessories

Information on compatible accessories like speakers, mixers, and cables.

Limited Warranty