USER MANUAL
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1. Fuses 40A – Replace the fuses only with the exact same style
and Ampere rating. Disconnect 12V power before changing or
inspecting the fuses.
2. Power Input Terminal +12V – This screw terminal connects to
the +12V battery binding post of the vehicle. Use quality insulated
wiring of the recommended wire gauge, such as wire gauge 4 or
thicker. Thinner wire may cause an overheating hazard due to the
large currents involved.
3. Remote Power Input Terminal – This screw terminal connects
to the 12V remote trigger output of some head units. When the
head unit is turned on, then the LC-1.800 amplier will turn on.
Alternatively, you can use the GTO feature of the amplier so it
will turn on when an audio signal is detected at the speaker-level
or line-level inputs.
4. Power Input Terminal Ground – This screw terminal connects to
a good ground connection on the vehicle.
5. Speaker-Level Inputs – The LC-1.800 amplier is supplied with
a standard 4-conductor plug that allows for easy installation and
removal. The speaker-level output from ampliers and factory
installed radios can connect here, so the LC-1.800 will receive the
audio signals and do its subwoofer thing. The left and right audio
signals are summed internally to produce a mono subwoofer sig-
nal. Make sure that you follow the plus and minus polarity mark-
ings on the LC-1.800 and match it to the polarity of the speaker
wiring. Do not use the RCA Line-level inputs if you are using the
speaker-level inputs.
Connection Panel Features
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