Radio Shack 85 Preparation, Choosing a Mounting Location, Before YOU Begin the Installation

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12-1977.fm Page 5 Tuesday, July 13, 1999 10:07 AM

PREPARATION

CHOOSING A MOUNTING LOCATION

The ideal location for mounting the amplifier is in your vehicle’s trunk. Wherever you 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 components.

Allows enough space around the cooling fins for proper airflow and cooling.

Warning: The amplifier gets very hot while it is on. Do not touch the amplifier or place flammable objects near it while it is on.

BEFORE YOU BEGIN THE INSTALLATION

Before you install your amplifier, carefully read all the instructions in this owner’s manual. You should be able to answer all of these questions about your vehicle’s electrical and sound systems.

Does my vehicle have a 12-volt negative ground system? (If it does not, you cannot use this amplifier.)

Which of the amplifier’s wires is the power wire?

How do I connect a wire to the fuse box?

Which amplifier terminals are line-level inputs, which are speaker-level inputs, and which are speaker outputs?

Important!

Be aware that installation in your vehicle may require cutting or modifying your vehicle.

Do not cut any of the amplifier’s wires. If you cut any wire, you cannot obtain a refund or exchange on this product. Radio Shack will provide warranty service if you cut a wire and find the product is defective.

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Contents 85 × 4 High Power 4-Channel Trunk Mount Amplifier Automatic Thermal Protection FeaturesMute Turn On Circuit eliminates Contents Choosing a Mounting Location Before YOU Begin the InstallationPreparation Connecting Ground and PRIMARY/SWITCHED Power Illus please add a dwg that illustrates step Low Level Input Connections Connecting to Your Autosound SystemFm Page 9 Tuesday, July 13, 1999 1007 AM Fm Page 10 Tuesday, July 13, 1999 1007 AM High-Level Input Connections Floating Ground Connection Common Fm Page 13 Tuesday, July 13, 1999 1007 AM Preparing the Speaker Wires Connecting the SpeakersConnecting Four Speakers Connecting Two Speakers Unbridged Connection Connecting Two Speakers Bridged Connection Fm Page 18 Tuesday, July 13, 1999 1007 AM Connecting Two Unbridged Speakers and One Bridged Subwoofer Testing the Connections Mounting the Amplifier Fm Page 22 Tuesday, July 13, 1999 1007 AM Turning on the Amplifier Setting the Level ControlOperation Over Freq Control Using the Frequency CrossoverOver Freq On/Off Switch Maintenance Replacing a Blade-Type Fuse Replacing the FusesReplacing the Tube-Type Fuse Specifications Radio Shack