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Message: <blockquote data-quote="ampjunkielikeme" data-source="post: 5620901" data-attributes="member: 582815">no , a low pass variable crossover is made to adjust the frequency that you dont want to play through your subs.....14 volts means that the amp was tested to make sure how many watts it puts out at 14 volts, and yes, your car is 12 volt but when its running it puts out 14 volts.......subs do not run on 12 volts . they run on the ac voltage that amplifiers put out..just make sure your subs rated rms wattage matches your amps rms output at whatever ohm your subs are........so if your 4 ohm kicker sub has a rms wattage of lets say ,250 watts. you will need a amp that puts out 250 watt rms at 4ohms.....</blockquote>

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