Finally! Progress. Finished tweeter mounts.

808MGuy · 10-24-2009, 09:33 PM

I've had all of my equipment ready to install for about 3 months now but just never had time to work on it. Today, I finally got cracking at modifying the factory tweeter mounts to accept my larger aftermarket tweeters. The a/d/s px concept tweeters I'm using are significantly larger than the OEM tweeters. Inspired by VP Electricity's thread on E90post, I decided to cut away some of the OEM tweeter cup and mount the tweeter to the foam backing behind it. My tweeters come with a threaded locking ring making it a bit easier to secure them to the foam backing. I test fitted everything today and it all fits just fine. I also made some AutoCAD drawings for an adapter ring for the 4" mid and cut out a test piece from cardboard just to test fit the holes for the OEM bolts. That fit like a charm too so I'll have to decide how I'm actually going to make that piece. I'm either going to do it out of 1/4" MDF or 3/16" T-6061 aluminum. Here's some pictures of the progress.

Cut out the foam backing to mount the aftermarket tweeter

Mount the new tweeter to the foam backing

Trim away the OEM tweeter cup to fit the aftermarket tweeter

View from the front. I removed the foam backing on the OEM grill to minimize obstructions to the tweeter output. (I forgot to take a pic with the grill off. The tweeter is not perfectly centered in the OEM grill but none of the driver's dome is obstructed.)

Cardboard template for midrange adapter

doba_s · 10-25-2009, 01:34 AM

immiketoo · 10-27-2009, 03:12 PM

Would you be willing to make and extra set of mounting rings for the mids?

kmarei · 10-27-2009, 04:19 PM

i was doing the same thing, but bent the outer grill
bought a replacement for $15
my tweeter was too thick with the existing plastic frame
how did you remove the circular plastic frame for the OEM tweeter?

808MGuy · 10-27-2009, 06:34 PM

Quote:

Originally Posted by kmarei

i was doing the same thing, but bent the outer grill
bought a replacement for $15
my tweeter was too thick with the existing plastic frame
how did you remove the circular plastic frame for the OEM tweeter?

I just cut it out with a dremel using a combination of the cut off wheel and sanding attachment.

808MGuy · 10-27-2009, 06:37 PM

Quote:

Originally Posted by immiketoo

Would you be willing to make and extra set of mounting rings for the mids?

You got a PM.

quality_sound · 10-28-2009, 03:16 AM

That looks awesome. I told you they'd fit in the foam.

I think I might have to hit you up for a pair of aluminum mounting rings too, especially since I have the same mid and all.

10-24-2009, 09:33 PM	#1
808MGuy Colonel 221 Rep 2,339 Posts Drives: 2009 E90 M3 Join Date: Jun 2008 Location: Oahu, Hawaii iTrader: (3)	Finally! Progress. Finished tweeter mounts. I've had all of my equipment ready to install for about 3 months now but just never had time to work on it. Today, I finally got cracking at modifying the factory tweeter mounts to accept my larger aftermarket tweeters. The a/d/s px concept tweeters I'm using are significantly larger than the OEM tweeters. Inspired by VP Electricity's thread on E90post, I decided to cut away some of the OEM tweeter cup and mount the tweeter to the foam backing behind it. My tweeters come with a threaded locking ring making it a bit easier to secure them to the foam backing. I test fitted everything today and it all fits just fine. I also made some AutoCAD drawings for an adapter ring for the 4" mid and cut out a test piece from cardboard just to test fit the holes for the OEM bolts. That fit like a charm too so I'll have to decide how I'm actually going to make that piece. I'm either going to do it out of 1/4" MDF or 3/16" T-6061 aluminum. Here's some pictures of the progress. Cut out the foam backing to mount the aftermarket tweeter Mount the new tweeter to the foam backing Trim away the OEM tweeter cup to fit the aftermarket tweeter View from the front. I removed the foam backing on the OEM grill to minimize obstructions to the tweeter output. (I forgot to take a pic with the grill off. The tweeter is not perfectly centered in the OEM grill but none of the driver's dome is obstructed.) Cardboard template for midrange adapter __________________ 2016 Porsche Cayman GTS - Sapphire Blue / Black Full Leather Interior / Carrera S Wheels
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10-25-2009, 01:34 AM	#2
doba_s Major General 405 Rep 6,107 Posts Drives: X7 l Cayenne l 997.2RS Join Date: Sep 2006 Location: Danville iTrader: (26)
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10-27-2009, 04:19 PM	#4
kmarei Major General 687 Rep 6,845 Posts Drives: 2018 Audi RS5 coupe Join Date: Jul 2008 Location: Reston, VA iTrader: (34) Garage List 2018 Audi RS5 [0.00]	i was doing the same thing, but bent the outer grill bought a replacement for $15 my tweeter was too thick with the existing plastic frame how did you remove the circular plastic frame for the OEM tweeter?
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10-28-2009, 03:16 AM	#7
quality_sound 8 tracks of madness 62 Rep 2,735 Posts Drives: Slowly Join Date: Jun 2009 Location: At home iTrader: (1)	That looks awesome. I told you they'd fit in the foam. I think I might have to hit you up for a pair of aluminum mounting rings too, especially since I have the same mid and all.
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