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Radio Shack 85 owner manual Connecting Two Speakers Unbridged Connection

Models: 85

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Connecting Two Speakers (Unbridged Connection)

12-1977.fm Page 16 Tuesday, July 13, 1999 10:07 AM

Connecting Two Speakers (Unbridged Connection)

If you are connecting only two speakers, you can connect them to the amplifier’s front (CH1 and CH2) or rear (CH3 and CH4) speaker terminals.

Caution: This is an unbridged connection that produces 85 watts per channel. If you do not have high power speakers, use this connection.

1.Connect one end of a speaker wire’s marked conductor to the amplifier’s + CH1 (front-left positive) or + CH3 (rear-left positive) terminal.

2.Connect the unmarked conductor’s end to the amplifier’s CH1 − (front-left negative) or CH3 − (rear-left negative) terminal.

3.Repeat Steps 1 and 2 to connect speaker wires to the amplifier’s CH2 + and − CH2 (front-right) or CH4 + and − CH4 (rear-right) terminals.

4.Connect the other ends of the speaker wires so CH1 (or CH3) connects to the left speaker and CH2 (or CH4) connects to the right speaker.

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Radio Shack 85 owner manual Connecting Two Speakers Unbridged Connection

Contents

85× 4 High Power 4-Channel Trunk Mount Amplifier 12-1977.fmPage 1 Tuesday, July 13, 1999 10 07 AMFEATURES Input Level Controls - let you adjustAutomatic Power Switching - auto 14k Gold-Plated Noise-IsolatedMute Turn On Circuit - eliminates Power Indicator - lights when power is onShort Circuit Protection - distorts CONTENTS PREPARATION BEFORE YOU BEGIN THE INSTALLATIONCHOOSING A MOUNTING LOCATION CONNECTING GROUND AND PRIMARY/SWITCHED POWER Cautions2.Securely connect the supplied dark blue/white wire’s spade connector end to the amplifier’s REM remote power terminal CONNECTING TO YOUR AUTOSOUND SYSTEM Low Level Input Connectionsrear-leftto CH3 and rear-rightto CH4 front-leftto CH1 and front-rightto CH2, or12-1977.fmPage 9 Tuesday, July 13, 1999 10 07 AM Note For the best results, use shielded phono plug-to-phonoplug Y- adapter audio cables, such as Cat. No. 42-2368not supplied High-LevelInput Connections Connection Floating Ground Connection Common Ground12-1977.fmPage 12 Tuesday, July 13, 1999 10 07 AM Connection Floating Ground Connection Common Ground12-1977.fmPage 13 Tuesday, July 13, 1999 10 07 AM CONNECTING THE SPEAKERS Preparing the Speaker WiresConnecting Four Speakers Connecting Two Speakers Unbridged Connection Connecting Two Speakers Bridged Connection 1.Connect the two speakers to the CH1 and CH2 terminals front speakers or to the CH3 and CH4 terminals rear speakers 1.Connect the two speakers to the CH1 and CH2 terminals front speakers or to the CH3 and CH4 terminals rear speakers TESTING THE CONNECTIONS MOUNTING THE AMPLIFIER 6.Reconnect the wiring SETTING THE LEVEL CONTROL OPERATIONTURNING ON THE AMPLIFIER CautionsX-OVERFREQ On/Off Switch USING THE FREQUENCY CROSSOVERX-OVERFREQ Control MAINTENANCE REPLACING THE FUSES Replacing the Tube-TypeFuseReplacing a Blade-TypeFuse CautionsSPECIFICATIONS Fort Worth, Texas RADIO SHACK A Division of Tandy CorporationWe Service What We Sell