low freq problem

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=94413
Printed Date: July 05, 2025 at 2:41 AM

Topic: low freq problem

Posted By: blockbeat07
Subject: low freq problem
Date Posted: May 31, 2007 at 2:04 PM

I have 2 12" cvr kickers, 800watts each, hooked up to a 1600watt boss amp and 4 some reason when i play certain song with low bass the woofers dont sound good.......they almost sound like their "bottoming out", but i dont wanna jump to conclusions. Anyone have any advice or knows whats going on.

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Replies:

Posted By: loosingmymind
Date Posted: May 31, 2007 at 6:15 PM

Improper box size can make anything bottom out, but you may have other problems.

Are they sealed together, sealed seperatelly, ported single, dual ports, ect. Give us some more info, please.

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David Fancher
USACi World Finals 2006
4th Place SQ PRO 601+

Posted By: Steven Kephart
Date Posted: May 31, 2007 at 8:17 PM

My guess is that you are hearing a clipped signal. It's surprising how mechanical clipping can sound. Make sure the gain is set correctly and that the bass boost is turned off. The next possibility would be an improper enclosure as David mentioned.

Posted By: blockbeat07
Date Posted: June 01, 2007 at 1:37 AM

They are both in a sealed enclosure. But my guess was that the box may be the problem 2, it may be too small.

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Posted By: Steven Kephart
Date Posted: June 01, 2007 at 1:56 AM

Too small an enclosure wouldn't cause the subs to bottom out. In fact the opposite would be true. Efficiency would be lower, as would low frequency extention where you get woofer excursion from. Where are you getting your signal from? Are you using an aftermarket head unit with RCA outs, or are you using a hi/low converter? If aftermarket, what is the rated voltage on the pre-outs? Where is the gain set on the amp? Do you have the bass boost on the amp turned up at all? Who did the installation?