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Old 25th April 2010, 08:00 PM   #1
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Smile Wanted Original DCM Time Window Woofer

I'm looking for a solution. I need a woofer from an original DCM Time Window. I have a pair that is fully functional except for one rattling woofer. Parts for this Iconic speaker are hard to come by these days. Any help would be appreciated.

Thanks
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Old 25th April 2010, 08:31 PM   #2
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IIRC the woofer is a Philips 8" AD70xx -- can you pull the bad woof and get a number? I can't recall whether they are 4 or 8 ohm (i suspect the latter -- 2 per box in parallel)

If it is what i think it is they aren't actually all that uncommon since being available to diyers they were used by a lot of small manufacturers.

dave
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Old 26th April 2010, 03:16 PM   #3
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Smile indow Woofer

I believe the driver diameter is 6 1/2 inches. The frame is octagon. I'working on a way to get the driver out. I'm going to try heating it with an infared heat lamp to soften the adhesive they used. Thanks for replying.

Greg
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Old 26th April 2010, 03:55 PM   #4
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The octagon, and size indicate a Philips AD70xx/Mx driver. I found a single of the 5" variation yesterday. Haven't gone thru all my drivers yet.

dave
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Old 26th April 2010, 04:00 PM   #5
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Default Photo of DCM Time Window Driver

Click the image to open in full size.
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Old 26th April 2010, 04:08 PM   #6
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That link is to an image on your hard drive -- only you can see it... use the post reply button, and then the Manage attachments button to upload the picture to the forum database so we can all see it.

dave
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Old 26th April 2010, 05:09 PM   #7
amt is offline amt  United States
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Im currently restoring a pair that the previous owner got rid of due to a buzzing woofer. It turned out to be a dust cap vibrating. If the voice coil isnt rubbing, then this might be the problem. The Philips woofers use a plastic dust cap that if unsecured anywhere around the perimeter, will buzz and sound like the driver is faulty. Check it by carefully putting some pressure on the cap with a Q-tip or similar soft item and see if it solves the problem.

Hope you get lucky...

amt
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Old 26th April 2010, 08:13 PM   #8
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Default Woofer Photo I Hope

I think I have it right this time. Thanks again for the help.

Greg
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Old 26th April 2010, 08:25 PM   #9
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Smile Dust Cap Issue

Thanks AMT. The dust cap doesn't appear to be the problem. The dust cap adhesive seems to be solid. I don't feel the voice coil rubbing. Of course there are only certain frequencies that set up the resonance. I did notice the number SR14218 on the woofer surrounds.
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File Type: jpg IMG_7194.jpg (424.0 KB, 28 views)
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Old 26th April 2010, 09:39 PM   #10
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That number is the part number of the surround itself, not the driver.

I have experienced problems with the litz wire on some drivers vibrating against the cone causing noise - probably worth checking this.

It also seems odd that the driver is glued in place. Were there no screws holding it?
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