Radio Shack 32-2054 manual Contents, Quick Start, Ampliþer
To
Expand
Your
System

Contents
Contents
Quick Start	3
A Look at Your Amplifier	6
Front View	6
Rear View	7
Preparation	8
Placing the Amplifier	8

Quick Start

Quick Start

Follow these steps to quickly set up your PA Amplifier. For detailed operation instructions, see Pages 6-14.

Step 1 Connect optional components (microphones, tuners, turntables, CD players, tape decks, or extra

AMPLIÞER
TO
EXPAND
YOUR
SYSTEM

Placing Speakers	8
Presetting the Controls	8
Presetting the Audio Input Sources	8
Presetting the Amplifier	8
Tips for Speaker Connection	9
Total Speaker Impedance	9
Proper Phasing	9
About Speaker Terminals	9
Determining the Speaker Wire Length	9

PHONO AUX/CD

AUX/CD

Connect high-level sound sources, such as CD player, tape deck, or tuner.

MIX BUS

Use a shielded cable with phono plugs to connect to another MP-40 amplifier.

Connections	10
Connecting Speaker Wires to the Amplifier	10
Connecting One Speaker	10
Connecting Two Speakers in Series	11
Connecting Two Speakers in Parallel	11
Connecting Four Speakers in Series and Parallel Combination	12
Connecting Speakers with Transformers	13
Troubleshooting	15
Specifications	16
Care and Maintenance	16
Replacing the DC Power Cord’s Fuse	16
Safety	17
Do Stuff	19
Limited Warranty	20

2

PHONO

Connect low-level sound sources, such as a turntable.

Note: Set the PHONO AUX/CD switch to PHONO.

MIC 1, MIC 2 Connect up to two microphones.

Caution: Before connection, turn off your amplifier and components and set their volume controls to minimum. To prevent hum and other noise, use low- capacitance shielded cables.

3TEP

#ONNECT
SPEAKERS
TO
YOUR
AMPLIÞER

Connect your speakers together in series, in parallel, or in series and parallel combination. Then connect the speaker’s negative terminals to amplifier’s COM terminal, and their positive terminals to the amplifier’s 4Ÿ, 8Ÿ, 16Ÿ, or 70V terminal.

3