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Crossover Slope

Old 06-26-2016, 06:02 PM
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Crossover Slope

Hi,
I have a Kenwood DNX572BH that's having volume fluctuation issues at high volume that's believed to be an over heating issue with the internal amplifier... I have done some reading and some folks have indicated that crossover slope could cause strain on amps internal or external if not set correctly... Does a guy want a lower slope (6db) or a higher slope (24db) to reduce that strain on the amp and maybe help with the over heating issues? Sorry for my lack of terminology or knowledge this slope thing is completely new to me... Let me know if you require any further info...


Thanks,


James
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Old 06-28-2016, 01:49 PM
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A crossover is used to prevent a speaker from playing a particular range of frequencies either above the crossover point or below the crossover point. But crossovers don't just halt all frequencies at the crossover point- they gradually reduce them. The slope shapes how steep (or quickly) those frequencies roll off.

A HPF (high pass filter) does exactly what it sounds like- allows frequencies higher than the crossover point to pass through and blocks frequencies lower than the crossover point. A LPF (low pass filter) does the exact opposite.

So now you know what a crossover does and that a slope refers to how much (or how quickly) it cuts out those unwanted frequencies.

So a 6db slope rolls off much slower than a 24db slope.

Your crossovers shouldn't be what is killing the amp. If your amp is constantly overheating, you may want to find yourself a more powerful amplifier. You may also want to check what the impedance is of the speakers connected. Typically, you shouldn't connect anything lower than 4ohm speakers to a head unit's output as it's not stable to those impedances and can overheat or blow fuses.
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Old 06-28-2016, 02:26 PM
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The amp is built into the deck... I turned the only external amp to my subs right off and I still had the volume fluctuations so its definitely not my external amp causing the issue... Starting to think this is more of a Kenwood hardware issue within the deck itself...
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