scenario where u would use hpf

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=93573
Printed Date: May 10, 2025 at 8:07 PM

Topic: scenario where u would use hpf

Posted By: gankstaflash
Subject: scenario where u would use hpf
Date Posted: May 03, 2007 at 4:05 AM

heyy,

just wondering if some1 could give me a scenario where you would use the High Pass Filter function?

Also, cant you just reduce the bass instead of using the HPF?

fanx

Replies:

Posted By: jmelton86
Date Posted: May 03, 2007 at 4:26 AM

I would say to allow the amp that is powering the high-pass speakers to use power more efficiently as it wouldn't have to push bass frequencies as well.

Yes, you can.

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

Posted By: DYohn
Date Posted: May 03, 2007 at 8:19 AM

High pass filter should always be used on your main stereo speakers. Set it to the same frequency as your LPF (low pass filter) used for the subs, or to the same as the LPF on your midwoofers if you use them. For subwoofers, a "subsonic filter" is also a HPF and should be used for ported systems.

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Posted By: jmelton86
Date Posted: May 03, 2007 at 6:07 PM

DYohn; Do you have to use a sub-sonic filter on ported boxes? Even if it's tuned real low and you're only using that sub for really low bass? -I know it's better for in the long run for the sub, but even if it's not getting rms wattage?

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

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