4 very heavy 15’’ subs in a cadillac sts

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=56522
Printed Date: May 20, 2024 at 7:17 PM

Topic: 4 very heavy 15’’ subs in a cadillac sts

Posted By: 97blackrodeo
Subject: 4 very heavy 15’’ subs in a cadillac sts
Date Posted: May 27, 2005 at 9:16 AM

I am new to this board, but not new to fiberglass. I have not done an enclosure this large yet so that is why i have questions. Very simply, the subs are power acoustic(owner purchased, dont know why) 340 oz 15 inchers. he has four of them and the the total enclosure size is 13.6 cu. feet. now 2 of the subs will fire into the car(back seat removed) and two will fire towards the trunk lid. The ports are coming through the back seat into the car. Heres my question. how many much reinforcement is needed on this type of enclosure, and what are the chances the box will blow apart if not enough layers are applied(being the box is ported and not sealed). any other feedback on this subject is greatly appreciated as well. thanks in advance.

-frank

Replies:

Posted By: 97blackrodeo
Date Posted: May 27, 2005 at 9:17 AM

Oh yeah, the enclosure is already made and in the car(extremely large). So anyone saying not to do it or it cant be done, please keep comments to yourself. thanks.

Posted By: abovestock
Date Posted: June 10, 2005 at 3:15 AM

Probably up to 7 layers of glass done 2 layers at a time should hold. The worst that could happen is that you mount the subs and the glass flexes because of the weight. In this case add more glass. As for blowing itself apart, I don't think you need to worry about that.