Installing Your Amplifier; Planning Your System - Insignia NS-A1200 Guide De L'utilisateur

Insignia NS-A1200 Car Amplifier
Item
4 B- terminal
(chassis
ground)

Installing your amplifier

Planning your system

Before beginning the installation, consider the following:
• If you plan to expand your system by adding other components
sometime in the future, make sure that adequate space is
provided and that cooling requirements are met.
• Consider whether you should use high or low inputs. Your
amplifier has been designed to accept a low-level (pre-amp
output from your stereo) signal source. If your source device is
equipped with pre-amp outputs, you can use them to drive the
amplifier, so you can connect the amplifier to the two rear
speakers. Then you can use the built-in power of your source
device to drive the two front speakers.
• Make sure that your components are adequately matched. The
peak power rating of your speakers must be equal to or greater
than the amplifier's. They also must be 1-8 Ω impedance. You
can find the speaker's impedance rating by looking on the
speaker magnet.
• Consider the length of your leads (wires) and the routing when
determining the amplifier's mounting location. Pre-amp input
jacks require a length of high-quality, shielded, male-to-male
RCA patch cable.
Description
To avoid unwanted ignition noise caused by ground
loops, the amplifier must be grounded to a clean,
bare, metal surface of the vehicle's chassis. The
ground wire should not be more than three feet
(one meter) long.
Note
Distortion level is considerably lower from pre-amp (low
level) outputs.
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