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KEF 104/2 tweeters

Good afternoon everyone. I just picked up a pair of KEF 104/2 speakers on CL. They are fully functional and I currently have them integrated in my system (Parasound Halo preamp and Nakamichi PA-5 amp).  I am concerned about the tweeters (one is slightly dented) and the ferrofluid. I've read some DIY fluid advice and am contemplating doing the work.  However, I've also heard that these tweeters are not top quality.  I've considered replacing them all together with Morel MTD 30s buy I can't seem to find any.  I would like to find a direct fit so I don't have to retro fit anything. Not sure about other available tweeters.... Also, do you believe it's worth while to do the surrounds while I have it pulled apart. Or any other suggestions for how to rehab them?? Thank you much! 

icarus12
georgehifi's avatar
georgehifi
10,312 posts
 
Those tweeter sound good when overhauled.
Dismantle them gently kneed out the dent from behind, clean the magnet gap and voice coil of all old gunked up ferrofluid , and fill the gap with new ferrofluid (ebay), don’t over fill as the voice coil and former have to go in that gap too, I'd say half fill the gap.

It’s all on Google on what cleaner to use and how to do it.

Cheers George
erik_squires
16,376 posts
 
Hey Icarus,
Did you see this old thread:

https://forum.audiogon.com/discussions/kef-104-2-tweeter-replacements

georgehifi's avatar
georgehifi
10,312 posts
 

I wouldn't de-value the 104/2,s with a different tweeter, the Kef T33 was a great tweeter when new they also used it in the 107/2,  just get some bad raps these days when old and crusty and half seized with dried up ferrofluid.

Also the T33 was designed to go lower than most tweeters, they cross it over at 3khz in these 104/2 so it's probably still doing audible work at 2khz.
Cheers George   
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