Question about Kenwood eXcelon KAC-X812D Car Audio Amplifier

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Kenwood eXcelon KAC-X810D

I need to know how to turn the 1600w max down on my amp to match the 1000w max of my car speaker. I want to turn it down about 700w.

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On the top of the amplifier are 4 controls. The first one is labeled as "input sensitivity". That is the adjustment you need to make. It would need to be set at around mid way between minimum and maximum.

One way for you to set it perfectly for your speaker would be to have it set first at about 1/4th of maximum, and then with the volume of the head unit turned all the way up with some heavy bass playing start to turn the input sensitivity up very slowly until you hear a small amount of distortion or rattling from the sub woofer. At that point you would back it down just a touch until there is no distortion or rattling from the speaker. This would have your amplifier set at a point where it is not pushing the speaker too hard but you would be getting the most from it.

Remember that any time you hear distortion, you are either pushing the speaker too hard or the amp too hard. The distortion is caused by clipping, which is not a good thing. If there is no clipping from the amp, and no abnormal sound from the speaker, you have it set properly to get the most from both the amp and the speaker and you are then minimizing the chance of damaging either the amp or the speaker.

Very wise decision on your part to want to use your equipment properly and not expect more than it is actually capable of. Many people just push their equipment to the max and then complain about how it broke down on them. If you follow my instructions you should be able to keep your sub woofer and amplifier in good working condition for as long as possible. It is no guarantee that it will never break down on you, but you will at least give it it's best chance for longevity.

Posted on Aug 26, 2008

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