7
Connecting Inputs
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.
ˆ
Connecting 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 (c
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
ends of each
conductor to
expose
1
/
4
4 Inches
Conductors
1
/
4
Inch
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