RadioShack Trunk Mount - Manual

Page 2 - FEATURES; Input Level Control

2 FEATURES © 1995 Tandy Corporation. All Rights Reserved. Optimus and Radio Shack are registered trademarks used by Tandy Corporation. Your Optimus 4 × 25 Watt Trunk Mount Amplifier is designed to pro-duce a total of 100 watts to give add-ed punch and power to your vehicle’sexisting stereo system. T...

Page 3 - CONTENTS

3 CONTENTS Preparation ..................................................................................................... 4 Choosing a Mounting Location .................................................................. 4Before You Begin the Installation .............................................

Page 4 - PREPARATION; CHOOSING A MOUNTING LOCATION; BEFORE YOU BEGIN THE INSTALLATION

4 PREPARATION CHOOSING A MOUNTING LOCATION The ideal location for mounting the amplifier is in your vehicle’s trunk. Whereveryou decide to mount it, choose a mounting location that: • Does not interfere with the vehicle’s operation • Lets you drill mounting holes without damaging other vehicle compo...

Page 6 - Note: Do not reconnect your vehicle battery’s negative (

6 Note: After you complete the connections and reconnect the battery wire,you will need to reset all clock/timer/memory devices in your vehicle. 2. Connect the supplied dark blue/white wire’s end to the amplifier ’s REM (remote power) terminal. 3. Securely connect the supplied dark blue/white wire’s...

Page 7 - CONNECTING YOUR AUTOSOUND SYSTEM; Low Level Input Connections

7 CONNECTING YOUR AUTOSOUND SYSTEM Low Level Input Connections You can connect your autosound system’s low-level phono output jacks to theamplifier’s LOW INPUT phono jacks. Note: For a cleaner, less noisy signal transfer between your autosound systemand the amplifier, the amplifier’s LOW INPUT phono...

Page 10 - High-Level Input Connections

10 If your autosound system has only two phono output jacks (left and right) and you are using only two speakers, simply connect them to the amplifier’s corresponding FRONT L and FRONT R , or REAR L and REAR R phono jacks. High-Level Input Connections If your stereo system has only speaker outputs, ...

Page 13 - CONNECTING THE SPEAKERS; Caution: Do not connect the speakers’ negative (; Preparing the Speaker Wires; Note: Be sure to twist the ends to secure loose strands.

13 CONNECTING THE SPEAKERS With the speakers placed in their approximate locations, run one speaker wirefrom each speaker to the amplifier. We recommend you use 16- or 18-gaugemarked or color-coded wires to help you correctly connect the speakers to youramplifier. For the maximum bass response and t...

Page 14 - Connecting Four Speakers

14 Connecting Four Speakers 1. Connect one end of a speaker wire’s marked conductor to the amplifier’s FL + (front-left positive) terminal. 2. Connect one end of the speaker wire’s unmarked conductor to the ampli- fier’s FL - (front-left negative) terminal. 3. Repeat Steps 1 and 2 to connect a speak...

Page 15 - Connecting Two Speakers

15 Connecting Two Speakers If you are connecting only two speakers, you can connect them to the amplifier’sfront ( FL and FR ) or rear ( RL and RR ) speaker terminals. 1. Connect one end of a speaker wire’s marked conductor to the amplifier’s FL + (front-left positive) or RL + (rear-left positive) t...

Page 16 - TESTING THE CONNECTIONS; immediately; MOUNTING THE AMPLIFIER

16 TESTING THE CONNECTIONS Before you permanently mount the amplifier, temporarily reconnect your vehiclebattery’s negative ( - ) cable, turn your vehicle’s ignition to ON or ACC, then test the connections. The amplifier is properly connected to the autosound system and speakers if youcan verify tha...

Page 18 - OPERATION; TURNING ON THE AMPLIFIER

18 OPERATION TURNING ON THE AMPLIFIER The amplifier automatically turns on whenever you turn on your autosound sys-tem. POWER lights when the amplifier is operating. SETTING THE LEVEL CONTROL For the best performance, you can adjust the level of the audio signals that enterthe amplifier by following...

Page 20 - MAINTENANCE

20 MAINTENANCE CLEANER Keep the amplifier dry. If it gets wet, wipe it dry immediately.Liquids can contain minerals that corrode electronic circuits. Use and store the amplifier only in normal temperature envi-ronments. Temperature extremes can shorten the life of elec-tronic devices and distort or ...

Page 21 - REPLACING THE FUSES; Replacing the Tube-Type Fuse; Replacing the Blade-Type Fuse

21 REPLACING THE FUSES If the amplifier shuts down, you might need to replace the power wire’s 10-amptube-type fuse (such as Cat. No. 270-1072, not supplied), the 10-amp blade-typefuse (such as Cat. No. 270-1081, not supplied) on the back panel, or both fuses. Cautions: • Do not use fuses with ratin...

Page 22 - SPECIFICATIONS

22 SPECIFICATIONS Output Power @ 14.4 VDC 1 kHz 10% THD Front .................................................................................................25W ¥ 2 Rear ..................................................................................................25W ¥ 2 Frequency Response ......

Page 23 - NOTES

23 NOTES 12-1976.fm Page 23 Tuesday, July 13, 1999 10:01 AM