Flush mounting taking into account excursion?

[ARSkemp 10+ year member]

Hi, im planning on making a fiberglass enclosure, ~2.4 ft, sealed a 15" FI Q.

The situation is that I will be fiberglassing an enclosure into the wheel well in the car. The sub will be facing up and i want it to be flush to the floor or a little below AFTER excursion is taken into account.

The FI Q says that its xmas is 27mm. Does that mean that the Q's max excursion is ~ 1.07 inches?

I want to make a wooden ring around the sub thats a little taller than the excursion so that when i put the floor over it (which i will cut a circle in and add some kind of metal mesh or something) nothing will hit the sub when i put stuff in the trunk.

Will this wooden ring make any kind of difference in sound? If it does would it be better to make a more open design like instead of it going straight up have it curve (i know that im not explaining that right)?

i'll try to make a drawing to see if i can give you an idea what i mean i a lil bit

Click to read more...

 

[phyphoestilic 5,000+ posts]

it should be fine, I'd make the ring around 3 inches higher then the surround then put a grill over it so u can put ur trunk cover over it or whatnot

 

[ARSkemp 10+ year member]

I think anything more than an inch and i start having to raise the floor up. Would 1.5" be enough based off the xmas?

 

[IamDeMan 5,000+ posts]

Would 1.5" be enough based off the xmas?

I would ask Santa this question if I was you. //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[lookitsjim23 10+ year member]

I would ask Santa this question if I was you. //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

lmao:laugh: //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[ARSkemp 10+ year member]

ya i meant "xmax" (lol just accidentally typed xmas again and fixed it).

why do i keep wanting to type xmas?!?!?

 

[Immacomputer 10+ year member]

You should really base it on xsus and not xmax. You should also take this distance and measure it from where the cone meets the surround. This will give you the most accurate measurement.

1.5" should be plenty though as the cone joint sits a little below the actual mounting ring.