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YOUR RESEARCH996 subwoofer
Leading reported evidence
Check every place
Performed · outcome unconfirmed
No successful repair reported for this finding.
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0
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1
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
All inside seams where then sealed again , with my finger , all the way.I double checked every place.
Leading evidence: 'Check every place' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check every place' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
tightened the screws evenly , and the cleaned away the sealant that came out.
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Performed · outcome unconfirmed · Original poster
I had the amp & sub temporarily fitted inside the cabin , at the passenger seat.It saved a lot of running back & forth to the trunk....
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Performed · outcome unconfirmed · Original poster
Then fitted the top , with plenty of sealant between the box & top.It came out everywhere...
Run subamp only , i believe the (possible)loss is not
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Performed · outcome unconfirmed · Original poster
it is a special unit , built for that purpose.And as I am using it to run the SubAmp only , I believe the (possible)loss is not that important ?
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Suggestion · Original poster
I wanted to build it fast , and be sure that I atleast get something out of it , so I ended up going the safe route.Sealed small box , to element manufacturers recommended size
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15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
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Generation: 20261026T124918Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Another try... And it is there ! I used MDF , 0.75" .This box will fit nicely behind the back seat. I tested it already.
/images/migration/UploadedForumImages/129_2914_1(1).JPG
Migration info. Legacy thread was 86282
Yippee , made it !! I mean got the pics loaded..... not easy I have to admit.
So the previous pic was the box taking shape.This one is the topcover already in place , with the speaker hole there. Sadly the pictures here do not show , how the box is narrower at the rear end. But the angled end pieces are clearly visible. That is why , I had hard time getting the top piece to fit nicely , and it did not..... So I have to do some filling before the top vinyl is fitted .
/images/migration/UploadedForumImages/129_2919_1.JPG
Migration info. Legacy thread was 86283
And the last one , the SubBox , and speaker in place. One 8" unit , in a sealed box. This is only the testing period... just wanted to see that the Amp & speaker & box all work. And they did. Notice the Bazooka SubAmp. Also notice the Sony MP3 between the Amp & speaker running the amp for this test.Also notice the brutal way of running the speaker wire under the speaker rim.... shame on me...
Will cover the whole box in Tan Leather ( vinyl?) , and will make hole in the back for the speakerwire connector. You might have noticed that the MDF corners/edges are not totally even.It was a struggle to get those angled ends to match the rear seats & area behind rear seats.... I need to use some filler to cover those areas.And the remaining faults will be hidden under the top vinyl anyway.
/images/migration/UploadedForumImages/129_2922_1.JPG
Migration info. Legacy thread was 86284
Test fitted it yesterday , sounds good.... so far ! If I havent mentioned , with the option # 490 , the Line-Out jack was/is used. Bough the speakerlevel socket , and then a converter to change the speakerlevel back to Line-level/RCA output. Spent plenty time tuning it , playing with level & crossover point , to make it blend in smoothly. Naturally , I am only playing with my ears , so no meters or anything on my disposal.
I had the amp & sub temporarily fitted inside the cabin , at the passenger seat.It saved a lot of running back & forth to the trunk.... as there the Amp will eventually be mounted. Now I know the basic set up of levels , after installation.
Next step is sanding / filling of the rather nasty looking SubBox.... and then covering it with a vinyl or carpet. And then also need to put the wires in , from headunit to trunk , and from the trunk to SubBox. Busy evening ahead....
Migration info. Legacy thread was 86683
[Image-only or quote-only post; no author-written text.]
https://911uk.com/proxy.php?image=http%3A%2F%2Fusers.skynet.be%2Ffa032321%2Fm030%2Fdeleted.jpg&hash=101290c878a95d65ef14e7fddfa13300
Hopefully I dont loose much.... it is a special unit , built for that purpose.And as I am using it to run the SubAmp only , I believe the (possible)loss is not that important ?
I had to use that speakerline to RCA converter only , because my SubAmp did not have speakerline inputs. I will also try to put a picture of that unit & set-up , when I am getting forward. Tested the Amp positioning yesterday. I have to fabricate a bracket for it , to make the installation look good. It will sit next to the stock amp , in the trunk.
Also managed to run the wires from the cabin to the trunk yesterday.The speakerwire from the new SubBox to the trunk , and speakerwires from headunit to the trunk. Will continue maybe tomorrow , or weekend. More pics coming later on.
Migration info. Legacy thread was 86890
Here is the "converter" , on top of the SubBox itself.Behind it , the speakerline connector , that I needed too. Ended up soldering extra wires from that speakerconnector all the way to the trunk , will mount this connector there. Beside the SubAmp.Then connecting RCA to RCA . Saved a lot of hassle by doing that , all equipment now there , side by side. Only needed to run the signalwires from speakerout to converter and the speakerwires from SubAmp back to SubBox in the cabin.
Will continue when time permits...
/images/migration/UploadedForumImages/129_2921_1.JPG
Migration info. Legacy thread was 87109
The box in place for trial fitting , and some adjustment.
Sounded OK. Currently waiting for the filler to dry , to continue sanding , and then installing the top vinyl.
/images/migration/UploadedForumImages/129_2953_1.JPG
Migration info. Legacy thread was 87336
Glenn, the size of the box is not always an indicator of the size and/or the number of drive units.
Also some speakers are defined as 'boxed' or 'free air', if you were to put a boxed speaker in a ported/open box this can alter its characteristics.
eki912, what sub are you using? Did you glue, screw and seal the box?
Damian
Migration info. Legacy thread was 87338
Sorry , some background details :
Size was calculated from the manufacturers info.They recommended 0.2 cubic feet for a sealed box. There are many places around the Internet giving out the tools to calculate box sizes.It is slightly bigger , than it should be.Mainly because the element needed nearly 10 centimeters of depth....and by doing it that big it fills the whole area behind the backseats. So it sits snugly , dont move up , or down or sideways.It is kind of locked in place with the rearseats.
The Sub element is PARTS EXPRESS companys (?) , DAYTON 8" quattro. I got some info , that GENERALLY sealed boxes are easier to manufacture and tune.....And multiple elements do bring other problems... so I went for the easiest/safest route..... I was thinking also putting 2 elements in there , maybe like 2 Subs , 6x9" ??? That would have been an easy fabrication , and looked good too ?But wanted to be safe. The amount of elements doesnt necessarily make it sound any better , than by using one good element only.
BTW : the pic where it is mounted on its place , I immediately thought of making the top panel slightly larger , sort of overlapping to the rearshelf.... or putting it in an angle too . Maybe creating more space , for like a 10" element....
Migration info. Legacy thread was 87340
Damian,
Yes, aware of that, however, i would have thought a smaller box would have suited the dynamics of a car better, i.e. tighter bass, a large cabinet like that would need a large room to sound it's best i would have thought...
G.
Migration info. Legacy thread was 87343
Now the vinyl is in place. Did some filling & sanding before that.
Sorry , I did not answer to all questions: Yes I screwed & glued it together.Used silicone sealant on every seam. Then screws. All inside seams where then sealed again , with my finger , all the way.I double checked every place. Then fitted the top , with plenty of sealant between the box & top.It came out everywhere... tightened the screws evenly , and the cleaned away the sealant that came out. After that also used sealant on EVERY seam on the outside. So basically , I sealed it 3 times... Except the top 2 times.
And Yes you are right. With the size of a Sub and how many Subs you should/can fit , there are so many options and choices to make. I wanted to build it fast , and be sure that I atleast get something out of it , so I ended up going the safe route.Sealed small box , to element manufacturers recommended size
/images/migration/UploadedForumImages/129_2957_1.JPG
, with a small element that will fit easily .
Migration info. Legacy thread was 87510
Old forum user Unidentified(11139) wrote:
nice job on the sub box! perhaps you could post the dimensions here for us all.
Have a look at this object below, I spotted it on Ebay. Apparently it's an optional extra for the Bose system and sits on the back shelf, this one went for £280. I wonder whats inside...
/images/migration/UploadedForumImages/bose.jpg
Migration info. Legacy thread was 87879
