bass bottoms out, boat system

Printed From: the12volt.com
Forum Name: Marine Electronics
Forum Discription: Boat Stereos, Security, Navigation, Lights, Switches, Gauges, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=80145
Printed Date: May 06, 2025 at 1:06 AM

Topic: bass bottoms out, boat system

Posted By: jixxxer
Subject: bass bottoms out, boat system
Date Posted: July 10, 2006 at 7:38 PM

I have a kicker 12" comp sub (older version) specs say 4 or 8 ohm, (watts peak / rms) = 300 / 150, equivalent volume = 4.50 ft3, net displacement = 104.9 in3.

I have that hooked to a power acoustik ps2-520 (2ohm stable)specs are:

2 channel, 4ohm=125x2, 2ohm=150x21ohm=300 max 520. This is in my boat. Its in a box that has about 1.8 cu. ft. of air space. Problem is when i turn it up and hit some low bass it bottoms out. Just wondering what the problem is with that. Other than that it sounds good.

Thanks.!

Replies:

Posted By: coppellstereo
Date Posted: July 10, 2006 at 7:41 PM

you could turn your gain down.
is it a single voice coil woofer?

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Posted By: zerepdivad
Date Posted: July 10, 2006 at 7:52 PM

yeah it might be clipping..... where's your gain set?

Posted By: aznboi3644
Date Posted: July 10, 2006 at 8:03 PM

Is the box size within the recommended volumes. Too box of boxes can cause woofers to bottom out.

Posted By: coppellstereo
Date Posted: July 10, 2006 at 9:01 PM

how old is the sub? May be a suspension problem

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Posted By: jixxxer
Date Posted: July 10, 2006 at 9:52 PM

i believe it is a single voice coil, not absolutely sure though. My gain is about 3/4 up. I also have a subwoofer controller on the head unit. If i am reading the spec off kicker correctly it says volumes is 4.5 ft3. The box i have now has maybe 1-1.5 ft3. Im not sure how old it is, its round, with the K on it and it has a big 25 on top for 25th anniversary. Hope this helps.

Thanks!

Posted By: aznboi3644
Date Posted: July 10, 2006 at 10:28 PM

Sealed or vented?? Have you taken it out and tried looking up the model number?

Posted By: jixxxer
Date Posted: July 11, 2006 at 5:38 AM

the box is sealed. I will try and take it today.