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SkunkedAgain

Amp/Deck Settings

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I just put a new amp/sub in my truck - it's great hearing James Jamerson, John Paul Jones, and McCartney hit those notes again!

My Pioneer deck (5-6 years old) has a high-pass filter for the main speakers and also a filter setting for the sub. Then the amp itself has a high/low/all-pass filter. I've got the amp set to allow signals under 130, with the deck's high-pass filter at 125 and the sub filter at 125. My question is:

Does it even matter what I set my amp's low-pass filter to, if I'm filtering at the Pioneer deck?

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Yes, it does, because overlaying (for lack of better term) the two filters causes the net slope of the filters to be additive. This causes a tendency to have a dip in frequency response in the crossover zone rather than a smooth transition.

Generally you'd use the HPF and LPF settings in one or the other but not both unless, maybe, you were trying to fix a specific issue in the tuning/frequency response. What matters most though is if you think it sounds good.

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When setting up a system I would always pass the full signal to the amp(s) and then set their crossovers accordingly depending on the speakers they are driving.

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