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iLoud MTM Tweeter Repair - It was going well until THIS HAPPENED!

ssashton

Member
Joined
Sep 22, 2022
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It seems I am in need of a replacement tweeter for my iLoud MTM. Sadly IK Multimedia (iLoud) do not sell a replacement. I purchased the speaker used so I do not expect warranty service, but it would be nice to be able to pay my hard earned money to get it working again instead of going to scrap!

I posted this on DIYAudio, I hope it's okay to do it here too.

I'm hoping someone on the interwebs can recognise this tweeter from an OEM catalogue or AliExpress etc?

Anybody know where to get a replacement tweeter for the iLoud MTM?

When I bought this it was working well. I measured the frequency response as below:

1709224937421.png


After some general use I measured it again and now it measures with some big dips in the response. I did not play it loud.

(Slightly different measurement setup, but dips confirmed to be from the speaker. Persistent with different conditions.)

1709225024614.png




I disconnected each driver and measured them separately. I also measured the Amp outputs directly to see if maybe the filters were messed up. I guess this is correct.

1709225119285.png


So I decided the tweeter was damaged. I thought maybe it used ferrofluid and needed a refresh.

I removed the glue around the tweeter and took it out.

20240229_160033.jpg



Ahh.. looks like the front can not come off without a careful operation.
20240229_161515.jpg


20240229_161532.jpg

Bingo, we have ferroffluid!

20240229_162303.jpg


Eww... it's somehow been mopped up by the sponge. What is ferrofluid doing out of the gap?!

20240229_162610.jpg



But OH NO! I was trying to be so gentle but this happended.

20240229_163638.jpg


I've managed to solder the tinsel lead back on, but I think it will never be as new again. So I'm not in a rush to get ferrofluid replaced.

The tweeter chamber is distinctive. Like a tiny Vifa NE25 or maybe Tangband... but not quite. Suggestions welcome!
NE25VTS-04_back_2048x.jpg

Vifa ^
s-l1600.jpg

Tangband ^
 
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