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<blockquote data-quote="DukeNut" data-source="post: 6960135" data-attributes="member: 604611">Set your gain level based on your hu rca voltage (probably 2 to 4 volts) . If the hu voltage is not known do this; Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with to use as a reference, and turn thehead unit volume control to about 80% of its full setting. Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection, you will need to turn the Level to the left a bit and then try again. If you reach a point where the output does not increase, stop turning the Level control to the right as the amplifier/speaker combo has reached its max output in this application.bass eq = 0hpf = 25 hz (that amp uses the high pass as a subfilter)lpf = 80hz to start, can make slight adjustments laterxover = lowpassmode= monomake sure your subs are wired so the amp sees no lower than a 4ohm load.</blockquote>

[QUOTE="DukeNut, post: 6960135, member: 604611"] Set your gain level based on your hu rca voltage (probably 2 to 4 volts) . If the hu voltage is not known do this; Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with to use as a reference, and turn the head unit volume control to about 80% of its full setting. Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection, you will need to turn the Level to the left a bit and then try again. If you reach a point where the output does not increase, stop turning the Level control to the right as the amplifier/speaker combo has reached its max output in this application. bass eq = 0 hpf = 25 hz (that amp uses the high pass as a subfilter) lpf = 80hz to start, can make slight adjustments later xover = lowpass mode= mono make sure your subs are wired so the amp sees no lower than a 4ohm load. [/QUOTE]

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