Radio Shack XL-50 owner manual Preparing The Speaker Wires, ˆConnecting Inputs

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This connection turns on the amplifier when you turn on the auto sound sys- tem, and turns off the amplifier when you turn off the auto sound system. This prevents your vehicle’s battery from being drained if you leave your amplifier on when you turn your auto sound sys- tem off.

If your auto sound system does not have a switched power lead, connect the blue/white wire’s other end to a point in your vehicle’s fuse block that has power only when you turn on the ignition or turn the key to ACC.

This connection turns on the amplifier when you turn on the ignition or turn the key to ACC, and turns off the amplifier when you turn off the ignition. This pre- vents your vehicle’s battery from being drained if you leave your amplifier on

when you turn your auto sound system off.

6.Use a screwdriver to connect the spade end of the supplied red power cable (with in-line fuse holder) to the ampli- fier’s + 12V terminal.

7.Connect the other end of the red power cable to your vehicle’s positive (+) bat- tery terminal as shown. Then tighten the terminal.

Caution: Due to the amplifier’s high cur- rent requirement, you must connect the red power cable’s fused end directly to the vehicle’s positive (+) battery terminal or damage to your vehicle’s wiring could result.

Do not reconnect your vehicle’s negative (–) battery cable yet.

ˆConnecting Inputs

PREPARING THE SPEAKER WIRES

You can connect two or four speakers to the amplifier and your auto sound system.

Caution: You must connect a separate wire to each speaker terminal as described in the following procedures. Unless your auto sound system’s speakers use a common ground wire, do not use a common wire or chassis ground for speaker connections.

Notes:

•We recommend you use 16- or 18- gauge marked or color-coded wires to help you correctly connect the speakers to your amplifier.

•Color-coded wires have a stripe running down one of the conductors or different

colored insulation for each conductor. Your local RadioShack store has a wide selection of speaker wire.

•For the maximum bass response and the best overall performance, keep your speakers properly phased (connect + to + and – to –).

1.With the speakers placed in their approximate locations, run one wire from each speaker to the amplifier.

2.Separate each wire’s two conductors at both ends for a length of about 4 inches.

3.Strip the insu-

lation from the		Conductors
ends of each
		1/4 Inch
conductor	to
expose	1/4	4 Inches

Connecting Inputs 7