W7 Question

[Showrides]

Maybe one of you JL guys will know this.

To mount a W7 you have to pull the surround back, screw the screws in, put the surround back over the screws, then put the o-ring back on. Does anyone know why JL designed their subs this way? I have a few ideas, but I was wondering if anyone knew the correct answer.

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[mike75356 10+ year member]

I dont know for sure..... but im thinking to cover the screw heads up and give a better/cleaner look?

 

[Showrides]

I dont know for sure..... but im thinking to cover the screw heads up and give a better/cleaner look?

That was one of my ideas too.

 

[~Magick_Man~ 10+ year member]

and to get more space/cone area out of the same size frame.

~Magick_Man~

 

[ngsm13 5,000+ posts]

Put it in the O-ring dude...

nG

 

[helotaxi 5,000+ posts]

It was purely functional by design, it happens to look good but that wasn't the reason for the design. It allowed JL to get a bigger surround for high excursion without sacrificing effective piston area. The result is that the sub has the excursion capability of a large surround sub and the piston area of a normal sub. Best of both worlds.

 

[JL12W7INAGS300 10+ year member]

It was purely functional by design, it happens to look good but that wasn't the reason for the design. It allowed JL to get a bigger surround for high excursion without sacrificing effective piston area. The result is that the sub has the excursion capability of a large surround sub and the piston area of a normal sub. Best of both worlds.

yep yep, the excurison on the W7 is insane, i will make a vid one of these days

 

[ngsm13 5,000+ posts]

yep yep, the excurison on the W7 is insane, i will make a vid one of these days

Yeah, because that's never been done before. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

nG

 

[fosgate140 10+ year member]

It was purely functional by design, it happens to look good but that wasn't the reason for the design. It allowed JL to get a bigger surround for high excursion without sacrificing effective piston area. The result is that the sub has the excursion capability of a large surround sub and the piston area of a normal sub. Best of both worlds.

nicely said:handclap:

 

[squeak9798 5,000+ posts]

It was purely functional by design, it happens to look good but that wasn't the reason for the design. It allowed JL to get a bigger surround for high excursion without sacrificing effective piston area. The result is that the sub has the excursion capability of a large surround sub and the piston area of a normal sub. Best of both worlds.

//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif

Just like helotaxi said....it was done so they could use a high-excursion capable surround without reducing cone area. The cosmetics of it was just a fringe benefit.

Had you glanced at JL's website for this information ( //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif ), they have a nice little info page about the "OverRoll" technology: http://mobile.jlaudio.com/products_subs_pages.php?page_id=36

Summary:By utilizing space wasted in conventional speakers, this ground-breaking innovation controls the W7's massive excursion without sacrificing precious cone area.