|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
Lets discuss DLS R4 Adaptors for E90's
|
|
08-20-2012, 01:33 AM | #1 |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Lets discuss DLS R4 Adaptors for E90's
Hello All, Im hoping this will spark some good discussion and in the end maybe turn out some nice DLS R4 Adaptor rings ( depending on interest )..
DLS R4 Woofer Specs :
Pros -
I have started an audio upgrade path on my E90 and im in a bit of a jam ( not really ) but I want to do this install good without cutting corners. There are many nice adaptor rings out there for shallower speakers but nothing for these as they are 60mm deep. Technic has a method that works well by just cutting off the mounting tabs and then laying them into the grill ( around 10-13mm not 100% sure ). After they are layed in the grill they are secured with dynamatt to the door panel.. Courtesy of Technic - Dynamatt Method Not the prettiest solution as he will admit himself but like many will say " IT WORKS and GETS THE JOB DONE !!! " This is the path I was going down as I already have a JBL MS8 / DLS 424 Center / DLS R4 front components.. I could change out to other components and be done with it but then my system complexity would be jumping up a notch as I would have to amp my front stage ( trying to keep it simple ). These speakers sounds great from what I hear for the money but currently there is just no way to mount them utilizing OEM mounting points. Well heres where this post comes in, I happen to have a close friend that owns a CNC business and maybe be willing to make a run of trim rings if can come up with a solid solution and get enough people on board ( im not an engineer by any means ). Do you guys have any interest??? Im not sure on pricing yet but I would think we would need like 10 guys to do a run, In the mean time lets just discuss the planning / ideas. Ive done alot of research and measuring but I dont have a door panel so somethings I am still unsure of and hope to get the questions answered in this post. Facts that I do know :
What I dont know :
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 08-20-2012 at 01:44 AM.. |
08-20-2012, 01:34 AM | #2 |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
After seeing a stock speaker ( L7 cause its what I had on hand ) It had a stepped lip that measured 8mm ( 5/16 ) Then there was a rubber lip after that. HMMM ..
My brain started spinning and I started to think, what If I gut this stock speaker as a template for an adaptor and see what we can do... And we begin : Below is some pics and measurements from the hollowed out bracket trimmed off the speaker. Details =
The rubber lip is removed when the speaker is gutted so we are left with a lip of 12.7mm.
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 08-20-2012 at 02:36 AM.. |
Appreciate
0
|
08-20-2012, 01:44 AM | #3 |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Fitting Trim on DLS R4
First some test fit shots.. -held on by tape for pictures only. Not sure how this can be secured maybe some sort of EPOXY? Comparison Now the measurement shots. From top to bottom From Back of trim ring to bottom of magnet ( UNDER 50MM ) Same as above but measured from a diff spot ( STILL UNDER 50MM ) ( 9/16 ) 14.2mm into the door From reading this thread - http://www.m3post.com/forums/showthread.php?t=405224 We may have up to 15mm so this would work. That thread is an E93 which is shallower but same grill. I dont have a spare door panel to test fit yet. If anyone knows how much room we have inside the grill that would be great. From the looks of it were under 50mm at the back so we could even shave a little off the front lip and move the speaker back more into the door itself if we needed too. If people are just looking for another way to make a trim ring by sacrificing your stock speaker speakers this maybe your way, If people are interested in something being made like this in aluminum and we can secure enough people maybe that can be done as well. Not sure how we would secure the speaker to the adaptor maybe EPOXY? ALL INPUT Welcome
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 08-28-2012 at 01:22 AM.. |
Appreciate
0
|
08-20-2012, 12:23 PM | #4 |
Colonel
227
Rep 2,339
Posts |
The grill is pretty close to the face of the door panel and the thickness of the door panel doesn't seem like enough where you could push over 1/2" into it without hitting the back of the grill. That is your biggest issue here along with a few smaller ones. I think the back clearance will be okay based on the measurement you show.
The smaller issues are, how do you secure the speaker to the adapter. Since you've cutoff all the mounting tabs, you're basically stuck with using some kind of adhesive or glue type product but then you've gone through all this effort and the weak link is the adhesive or glue which puts you in the same situation as Technic's dynamat solution. So you've gone through all this work to end up in the same place you would have been with $5 worth of Dynamat. I think if you're going to expend that much effort, maybe a solution to mount the speaker from the front side of the door panel would be something worth looking at. It would probably require that you install a non-OEM grill and possibly drill a couple of holes into the door panel but at least you have a secure mounting system to work with. I'm assuming being able to put back the OEM speaker is not a concern since you're already hacking up the OEM speaker. Depending on where the new holes end up, it might be exposed if you try to reinstall the factory grill. Unfortunately, I don't see any other way of doing this without doing any mods to the door panel unless you go with the dynamat method.
__________________
2016 Porsche Cayman GTS - Sapphire Blue / Black Full Leather Interior / Carrera S Wheels
|
Appreciate
0
|
08-20-2012, 12:52 PM | #5 |
Colonel
227
Rep 2,339
Posts |
On second thought, it looks like you have some room on the backside to play with. If you could reduce the lip on the front side of the adapter so that the speaker is not pushed so far towards the grill, there might be a chance for this to work but there's still that issue of how to secure it.
Bottom line is, you got a lot of trial and error on your hands. I went through about 5 or 6 versions of the adapters I made before I came up with one that would work for "most" applications. BTW, that magnet is pretty big which could be another problem. Have you actually tried to test fit this into a car yet? The diameter of that magnet could be a problem.
__________________
2016 Porsche Cayman GTS - Sapphire Blue / Black Full Leather Interior / Carrera S Wheels
|
Appreciate
0
|
08-20-2012, 01:28 PM | #6 | |||||||
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Quote:
If you wish to grab more height you can trim the ring down more and push the speaker back into the door panel up to 5mm more or so. I can do a comparison measurement of both front-lip pieces ( L7 un-modified vs DLS ) tonight and post a pic. Quote:
have to be secured with some industrial based epoxy that should lock it on forever but wont be able to be reused ever. Quote:
Quote:
Quote:
This if done right should be a solid as a welded piece. If there is enough interest I have access to a full CNC shop with a friend who maybe willing to draw this up in CAD and try out. CNC Adaptor Idea I think if you shave down the lip on the mock up adaptor front as much as possible until your at 52mm max in the back of the door panel. You should gain a little clearane up front, Now I you could replicate that part now in aluminum and make it threaded. You could drop the speaker into the adaptor and then have a cap that screws on to the top like a sandwich.. Again this would have to been thin and strong. Quote:
Quote:
If its going to be an absolute pain with minimal interest I will just make a custom set for myself or just EPOXY the rings onto my set. It was late, I had a fresh cup of coffee and sat down to brainstorm the ideas
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 08-20-2012 at 02:18 PM.. |
|||||||
Appreciate
0
|
08-20-2012, 08:10 PM | #7 |
New Member
0
Rep 9
Posts |
Have you though about using two sets of rings, one on front of speaker and one on rear of door panel, that sandwiches the door panel and speaker mounting ring?
I guess I'm layering it like this from outside of panel to inside of door: speaker grill --- adapter ring --- speaker --- door panel --- adapter ring Then you would use a nut and bolt to sandwich the speaker and door panel between the two rings. No glue needed. |
Appreciate
0
|
08-20-2012, 09:36 PM | #8 |
Brigadier General
281
Rep 4,121
Posts |
I am willing to invest.
I think you are well on your way. If you dont go CNC, I think a good epoxy or construction adhesive would be easily stronger than dynamatt. Edit: I still think you SHOULD do something machined...looking at the profile shots a two-part solution utilizing a thin plate on one side could be a winner Last edited by taibanl; 08-20-2012 at 09:55 PM.. |
Appreciate
0
|
08-20-2012, 09:58 PM | #9 | |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Quote:
his time is still limited and although I could get them designed probably fast in cad/solid works it may take time to setup the machine etc to make a run. I will see how this thread picks up, If there isn't much interest at-least if anything I have set the ground work for others looking to go this route. I need to find a used door panel it can be destroyed, I just need it for fit up w/a grill attached.
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 08-20-2012 at 10:12 PM.. |
|
Appreciate
0
|
08-28-2012, 05:23 PM | #10 |
Lieutenant General
2418
Rep 13,090
Posts |
If you use the OEM grill as the "stopper" then your adapter/spacer will work without any adhesive/glue to the R4 cone. It is no different than what the Dynamat does but looking and working better...
|
Appreciate
0
|
08-28-2012, 07:52 PM | #11 | |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Quote:
Its 14.2mm into the door panel as is I thought it might be left floating like if theres 15mm of space and this only sticks fwd 14.2mm. ( im not sure how much room you have I dont have a panel to test on / measure ). I really wanna make this out of aluminum with some sort of lid that will screw over around the edge that will screw on but there doesnt seem to be much interest. If I dont get any interest ill just work on some sort of adaptor for myself and just post any info here for anyone else installing R4's.
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 08-28-2012 at 08:19 PM.. |
|
Appreciate
0
|
08-28-2012, 08:51 PM | #12 | |
Lieutenant General
2418
Rep 13,090
Posts |
I can lift the whole door panel by the R4 magnet after using Dynamat so this spacer should only be tighter.
The problem that I see with this is the availability of the R4 itself and not of the spacer. It is too frequently in backorder everywhere. This particular step-lip spacer can be used in the E92 as well with any 50mm-or-below depth 4" mid. As long as the cone diameter do not exceed the lip diameter it should work. Quote:
|
|
Appreciate
0
|
08-28-2012, 09:39 PM | #13 | |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Quote:
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] |
|
Appreciate
0
|
09-02-2012, 11:12 PM | #14 | |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Well it doesn't seem like there is much interest, Its not going to be worth designing, test fitting and making
the parts if nobody is going to want a set. The only thing I need to confirm is if how it sits currently fits, depth into grill. If not I could shave down a little as we have room to push into the door more currently were at like 40mm of 52mm max. Whats cool is this is made from a stock speaker ( so we all have these ) or if you dont want to mess with your stock speakers used speakers could be purchased for cheap and save your stocks. Last night I was hanging with my friend who would be the one doing the drawings etc. I showed him exactly what we had previously talked about etc and from finally seeing my idea he said : Quote:
I may try this and keep everyone posted, This could be a low cost option that would satisfy the requirements of a clean cheap permanent install. It took me 5 mins to find 2 speakers on eBay for under $40 and 15 mins with a dremel. In the case study on the site they have used this to secure metal shelving to plastic walls in vans for shelving. Case Study Loctite® H8600™ Speedbonder™ Adhesive Eliminates Through-Bolting in Van Body Assembly If it can do this there is no reason it cant work for minor securing of speaker adaptors.
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] Last edited by QUiKSR20; 09-02-2012 at 11:28 PM.. |
|
Appreciate
0
|
09-27-2012, 06:50 PM | #16 |
Enlisted Member
9
Rep 44
Posts |
Im interested too. Pls keep us posted if there are already adapters ready to be ordered or at least some design we could replicate. Or perhaps measurements on how much should be dremeled off the stock rings. Thanks!
|
Appreciate
0
|
09-27-2012, 10:22 PM | #17 | |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Quote:
This should work perfect and if you dont want to hack up your speakers you can purchase ones cheap online. I feel this is going to work great. Ill keep you guys posted.
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] |
|
Appreciate
0
|
09-28-2012, 06:27 AM | #18 | |
Enlisted Member
9
Rep 44
Posts |
Quote:
Thank you for your time. |
|
Appreciate
0
|
10-01-2012, 03:26 PM | #20 |
Enlisted Member
9
Rep 44
Posts |
@ QUiKSR20 and Everyone
I got a pair of OEM adapters from stock speakers I bought. I am now planning to alter them for this R4 project. How much should I shave off the adapter rings for the proper spacing on the R4 to the e90 door? Just enought to avoid it from hitting the rear face of the grilles and being able to be mounted without hitting doors? The figures abve are a bit confusing. Maybe someone has exact measurements on how much to shave off? I will stick them up together with epoxy. Thank you guys! |
Appreciate
0
|
10-01-2012, 04:33 PM | #21 |
Major
365
Rep 1,419
Posts
Drives: 13' F30 328i 6MT
Join Date: Mar 2012
Location: NJ
|
Hey Gunman,
Glad you are looking to doing this as well, First thing you need to do is gut the speaker so your just left with the ring like I did. Im still waiting to get the final measurement you are looking for. I cant seem to locate a spare door panel to test with. I could make it on my on door panel but then I would have to have my door apart for a day or two while the epoxy dried etc and with a kid and working 5 days a week its hard to do. Need to acquire a spare door panel for testing only, Get the exact measurement and after that I will put up a 100% DIY Step by Step thread that can be made into a sticky hopefully for everyone. This thread was just to gather ideas and interest.
__________________
'13 F30 328i Sport 6MT | '18 G01 X3 xDrive30i | '95 E36 325i Vert 5MT
92 Sentra SE-R SR20DET DET Build Thread 89 E30 325is [sold & missed] |
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|