3
Features
ˆ
Features
Your RadioShack High Power 4/3/2-Chan-
nel Bridgeable Amplifier produces a total of
400 watts to give added punch and power to
your vehicle’s existing auto sound system.
The amplifier produces up to 200 watts per
channel (if bridged) of clean, powerful sound
at all audio frequencies with minimum distor-
tion. You can connect your auto sound sys-
tem’s low-level or speaker-level outputs to
this amplifier.
Its features include:
14K Gold-Plated Noise-Isolated Low-Lev-
el Input Jacks — let you connect low-level
(preamplifier) signal inputs to match your
auto sound system’s output for the best high-
fidelity performance.
14K Gold-Plated Speaker Terminals — de-
signed for low impedance, high conductivity,
and minimum corrosion, to provide the high-
est signal transfer and lowest sound distor-
tion.
Input Level Controls — let you adjust the
level of the audio signals that enter the am-
plifier.
Automatic Power Switching — can auto-
matically turn the amplifier on or off when
you turn your auto sound system on or off
(depending on how you hook up the amplifi-
er).
Bridging Capability — lets you combine the
amplifier’s four 100-watt channels so you can
use the amplifier with only two channels that
produce a total of 200 watts from each chan-
nel.
Mute Turn On Circuit — eliminates the
thump you hear when you turn on some am-
plifiers.
Power Indicator — lights when power is
supplied to the amplifier.
Protection Indicator — lights if the amplifier
shuts itself down.
Crossover Frequency Circuit — lets you
adjust the crossover frequency from 45–400
Hz. This lets you set up the amplifier so you
can connect a subwoofer.
Short Circuit Protection — distorts the am-
plifier’s sound if any output channel shorts,
alerting you to turn off the auto sound sys-
tem.
Auto-Off — temporarily shuts down the am-
plifier to protect the amplifier from overheat-
ing or input overloads. The amplifier restarts
automatically when it cools or the problem is
corrected.
THE FCC WANTS YOU TO
KNOW
Your amplifier might cause TV or radio inter-
ference even when it is operating properly.
To determine whether your amplifier is caus-
ing the interference, turn off your amplifier. If
the interference goes away, your amplifier is
causing it. Try to eliminate the interference
by:
• moving your amplifier away from the
receiver
• contacting your local RadioShack store
for help
If you cannot eliminate the interference, the
FCC requires that you stop using your ampli-
fier.
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