Input Sensitivity Control; Making Amplifier Settings - Insignia NS-A1000 User Manual

Insignia NS-A1000 Car Stereo Amplifier
Inductor low
pass filter

Making amplifier settings

Variable low-pass filter
To use the amplifier as a dedicated subwoofer channel, set filter
switch to LPF and adjust variable crossover frequency with control as
desired. The amplifier's input circuit filters out everything above
40....250 Hz, depending on the set-point of the frequency control, so
that only the chosen bass notes / frequencies are amplified.
Variable high-pass filter
To use the amplifier as a dedicated high range channel, set filter
switch to HPF The input circuit filters out all frequencies below
40Hz....250 Hz, depending on set-point.
Bass boost and the remote bass control
Use the bass boost function to emphasize the deepest bass notes at
50 Hz.

Input sensitivity control

In order to achieve maximum signal-to-noise performance, the input
sensitivity control adjusts the signal level from your car stereo/source,
to match the amplifier's sensitivity. It is not a volume control.
Note
Capacitor high pass filters
Not performing this adjustment and simply setting the input
sensitivity control at or near the MAX position may permit
electrical audio noise into the system.
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