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Use the 50Hz sine wave to set the gain for
a subwoofer and the 1kHz sine wave for
full-range speakers. Set your voltmeter or
oscilloscope to measure AC voltage. Place
the voltmeter's probes on the amplifier's
speaker output terminals. With the sine
wave playing, slowly turn the gain knob
clockwise and watch the AC voltage on the
voltmeter increase.
When the desired voltage is shown
(reference
power chart at
KICKER.com), or
you start to see the waveform square off
stop increasing the gain, turn the amplifier
off, reconnect all speakers and set the
crossovers to your desired setting. Your
gain is now set for maximum unclipped
power from the amplifier. If you increase
amplitude using settings on the source unit
or the bass boost on the amplifier it will
introduce distortion and you will need to
redo these steps.
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