I bought bad Mission 753's, T's and x-overs fried, worth fixing? - Page 6 - diyAudio
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Old 30th November 2007, 02:55 PM   #51
timbert is offline timbert  United States
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Here's where I put the new resistor on the tweeter. Is this not said to be in parallel with the tweeter?
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File Type: jpg mission753schematic-2.jpg (23.3 KB, 318 views)
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Old 30th November 2007, 04:14 PM   #52
sreten is offline sreten  United Kingdom
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Hi,

That is in the right place but then i do not know where the
10.4 R measurement comes from, something is confusing.

Change it to 8R if it has too much effect.

/sreten.
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Old 11th December 2007, 07:53 PM   #53
laser21 is offline laser21  Slovakia
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Hi,

my tweeter just died

http://i65.photobucket.com/albums/h2...weeterBAck.jpg
its exactly as in the picture. From mission 753.

Any place, where I could buy it from? You guys are clearly experts here...you could save me a lot of time looking for it! Thanks
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Old 11th December 2007, 08:03 PM   #54
timbert is offline timbert  United States
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I was able to order replacement voice coils from Madisound here in the US, but they are 8 ohm coils, not 4. They fit fine and work okay, but the tweeter was very loud, and as recommended I've added a resistor and now it's too soft, so I continue to experiment. Please let me know if you find 4 ohm coils or entire replacement tweeters. Also, I did other work on the crossovers so that may be the problem I am having, but I'm not sure.
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Old 11th August 2008, 05:17 PM   #55
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Recently I found that tweeters of my pre-Freedom 753s are gone too.
Don't know if it matters, but they were bi-wired too.
The amp is an Arcam A85

Label at the back of the Mission 753 HF unit state:
Mission
Part No. 53-HFLM21
Made in Denmark
Qc 941215
Cat No. 811877
4 Ohms

Madisound are out of stock.
Does anyone where to get a replacement?!
Both aluminium diaphrams are fine. Can they be re-wound?

Thanks

Job CF
Goring-by-Sea
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Old 5th September 2008, 03:14 PM   #56
mowog44 is offline mowog44  United Kingdom
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How bizarre.
Just found this thread by googling the same problem also with my Mission 753's.
I (well it was the wife actually) blew the tweeters and both x-overs.

I have already replaced the crossovers (supplied by Mission) but the tweeters are a different matter.
Mission are out of stack and won't be getting any more.

I'm currently sending mine down to a company in London called "Wembley Loudspeakers" who are going to try and fix or replace them.

I'll let you all know how it goes.
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Old 5th September 2008, 05:30 PM   #57
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Mision tell me that tweeters for 753s are no longer available.

Someone suggested rewinding. Is this feasible?
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Old 5th September 2008, 06:48 PM   #58
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Quote:
Originally posted by Blue_Max
Mision tell me that tweeters for 753s are no longer available.

Someone suggested rewinding. Is this feasible?
Get in touch with Wembley Speakers as mowog suggested. They're well known for drivers repairs and its likely they'll be able to assist you in some way or another.
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Old 3rd April 2009, 02:35 AM   #59
timbert is offline timbert  United States
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As the person who originally posted I thought it was only right to close things out on my issue. I parted out the woofers on ebay to some very happy Mission owners, and the tweeters with the wrong coils to a guy in Germany. One pair of the drivers sold for $15, another for $115, so if you use ebay keep that in mind. No one on ebay was interested in the repaired crossovers, and I tossed the cabinets in the trash. I could not bring myself to do it and had my little son drag them out there. I have the original tweeter diaphrams with the torn windings if anyone wants them. Maybe a cottage industry could crop up in rewinding these things if there was enough demand.

I rarely give up on projects, stubborn as I am, but this one nearly overwhelmed me. I learned a lot along the way, thanks to everyone here. I still use daily the speakers I've had for 15 years, Paradigm 11se Mk II towers.

Cheers,

Timbert
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Old 7th April 2009, 12:14 PM   #60
sreten is offline sreten  United Kingdom
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http://www.madisound.com/catalog/pro...oducts_id=8443

Hi, out of stock, but may still be ordereable, /sreten.
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