Subsonic Filter?

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=14030
Printed Date: May 31, 2024 at 8:24 AM

Topic: Subsonic Filter?

Posted By: sodamninsane
Subject: Subsonic Filter?
Date Posted: May 26, 2003 at 8:35 PM

Hey guys, quick noob question.

What does the subsonic filter switch on my Audiobahn A3201Q do? I've tried turning it on and off and it doesn't really seem to do anything. Maybe I'm just deaf or somethen. I tried lookin it up and can't find any resources on it.

It's adjustable from 20-50Hz. I figure it acts kind of like a crossover, but I can't tell a difference with it on or off. ANy info would be great.

Thanks in advance.

Andy

Replies:

Posted By: Tcole
Date Posted: May 26, 2003 at 8:51 PM

It is a filter that cuts out power robbing frequencies.
The freq.(s) it cuts out is somewhere around 20hrz and down. I am sure someone will give an ecact freq.

IMO it is a good feature.

Posted By: sodamninsane
Date Posted: May 26, 2003 at 9:06 PM

AHHH... that explains a lot. So basically if I set it at around 25, it cuts out everything below that. Makes sense. but i think I'm gonna just leave it off...

Thanks a lot.

Andy

Posted By: wvsquirrel
Date Posted: May 26, 2003 at 11:58 PM

Here's a good link to an older thread where esmith69 explains the advantages/disadvantages of subsonic filters

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Squirrel
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Posted By: Tcole
Date Posted: May 27, 2003 at 5:38 AM

Andy,
Your amp should have a button that will either engage or disengage the filter. The cutoff freq. is already set.

Posted By: sodamninsane
Date Posted: May 27, 2003 at 10:28 AM

Tcole] wrote:

ndy,
Your amp should have a button that will either engage or disengage the filter. The cutoff freq. is already set.

Actually it's got a selector switch (on off) and a dial, like a gain adjustment. The frequencies are marked from 20hz to 50hz. posted_image

Posted By: Tcole
Date Posted: May 27, 2003 at 8:39 PM

Well even better then, more to tweak. I am sure 20 to 30 hrz will be sufficient I wouldnt go any higher.

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