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LPF all the way up on amp then setting it by head unit?


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my friend told me this little trick he found out, he said tony posted it but couldnt find anything on it...you set the LPF all the way on your amp and you set your LPF on your deck to the lowest, so like 50 or 60hz. he said he got louder by doing that, bc the LPF actually controls power? wanted to see if this was true and if so, is it bad? never heard of this till today

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thats how i do it, i dont use the amps filters....headunit and volume for below tuning :)

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Did that on my wife's new Pioneer... except no filters set on the amps... but it didn't get "louder" lol, just need to reset your gains.

2007 Pacifica
Rebuild. Less quiet. Still not loud.

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im guessing your friend got louder because the amp was not tuned right.. i go full range on deck and tune the amps with the CC-1 ftmfw

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...or 80 or whatever. I like changing it at the HU because some music (more acoustical) likes the xover point at 63hz and bassheavy music sounds better at 80hz. But that's just in my wife's car. In mine 70hz all day long

2007 Pacifica
Rebuild. Less quiet. Still not loud.

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Some head units let you choose different crossover slopes as well as points. On an amp you need to do a little extra work to know exactly where your filter is set at, since they aren't calibrated to the printing of the numbers on the amp case.

Some people prefer a steeper slope and some prefer a flatter slope.

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