10" Subwoofer behind Driver's seat
#24
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Join Date: Mar 2015
Location: Vancouver, BC
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After going through the plethora of posts about installing an aftermarket sub in the stock location, I've decided to do the same (no custom box; sound-deaden the hell out of the enclosure) for my Roadster. I will likely use a slim subwoofer, though an installer has advised that enough sound-deadening will ensure that most other subwoofers will be fine.
My questions are:
Which subwoofer, if any, will allow fitment of the factory speaker cover after installation, if any? If there is no way to get the factory speaker cover to fit over an aftermarket subwoofer, how did you guys get around this? I've seen pictures of some of the work you guys have done to get around this. They look great but can you advise what specifically was done?
Other than the inside of the enclosure, where else should sound deadening be applied to eliminate all rattles?
What other fitment issues can I expect? I know that this depends on which make and model I use; are there models that are generally hassle-free in terms of fitment?
My questions are:
Which subwoofer, if any, will allow fitment of the factory speaker cover after installation, if any? If there is no way to get the factory speaker cover to fit over an aftermarket subwoofer, how did you guys get around this? I've seen pictures of some of the work you guys have done to get around this. They look great but can you advise what specifically was done?
Other than the inside of the enclosure, where else should sound deadening be applied to eliminate all rattles?
What other fitment issues can I expect? I know that this depends on which make and model I use; are there models that are generally hassle-free in terms of fitment?
#25
Registered User
There is a metal bracket that mounts behind the speaker cover which the stock sub mounts too. It's a serious pain in the *** to install if it isn't already there but without that bracket, you won't be able to keep it behind the speaker cover. The other problem you will have is only the stock sub's screw mounts will line up with the bracket, so you'll need to tap new holes for an aftermarket sub. Nearly any sub mounted in the bracket will fit behind the stock speaker cover. Don't assume you don't already have this bracket, remove the solid plastic behind the seat and check for it. Even base models were equipped with the bracket before it was decided if the vehicle would have the upgraded Boses sub. Sound deadening is a "see how things go" type of situation. Find the rattles, fix. There is no cookie cutter approach unless you are going to do EVERYTHING under the plastics and headliner.
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Spike100 (11-05-2019)
#27
New Member
Fun to see this ancient thread resurface - and convenient for me. I’ve been thinking that there’s a pretty big honking hole where the Bose sub goes, enough to fit a wide array of compact prefab boxes. I’m seriously considering just tossing one in there and putting the faceplate back over, instead of doing an elaborate form fitted box. Same idea as putting a powered sub in the hole, just one step more. Pretty much the same as this, actually:
https://my350z.com/forum/audio-and-v...l#post10989507
https://my350z.com/forum/audio-and-v...l#post10989507
Last edited by Promit; 09-06-2019 at 06:19 PM.
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Zelduh (03-14-2020)
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813_350Z (11-05-2019)
#32
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Darkz03 is correct. It is very difficult fitting a custom SubW box in the compartment behind the driver or passenger seat. A powered SubW is a more reliable solution. If you prefer a ported SubW, use the Z's rear hatch-space (under the rear arch bar, a corner in rear hatch-space, or under the floor in the hatch-space).
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