Many say this will help keep the box seated more securely enhancing performance. What is everyones experience with bolting down the foxbox vs leaving it unbolted. Also, what method (location, size of hardware, etc...) did you use to bolt it down?

-Marques

 

Bolting down any subwoofer box will eliminate any potential vibrational sounds that would arise from a loose box. Those sounds cause crappy listening that sound like distortion. Also, if the box isn't screwed to your truck, insurance likely won't cover it.

 

When i first had my FB it would vibrate, flex and bounce. After bolting it down it was MUCH better in sound.

I drilled 1/4" holes in the bottom of each speaker well and through the floor pan of the truck. I placed a 1/4" bolt with a rubber washer and steel washer on that bolt and slid it through the floor pan. From the under side I used a steel washer and a nylon lock nut to secure it. This also keeps someone from stealing it. I installed security screws around my subs so if you cant get the subs out then you cant get the box out.

 

Excellent info, I will definitely be hitting the hardware store later today. As far as anti-theft is concerned, I was thinking about using some lock pins where the seat is hinged on either end (drilling necessary). I do, however, also like your use of security screws.

As a somewhat related topic, who has their foxbox stuffed with polyfill? My 12w3v3's like to be in about a 1.25 ft^3 box each, so that is a necessary 2.5 total cubic feet. Adding polyfill between 1 and 1.5 lbs/cubic foot causes the accoustical performance of a box to emulate one that is 30-40 percent larger--yielding a near perfect combination in my case.