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T33 SP1074: Does it have ferrofluid or not?

 
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Jay
Intermediate Contributor 25+


Joined: 12 Apr 2010
Posts: 37

PostPosted: Wed Oct 15, 2014 12:14 pm    Post subject: T33 SP1074: Does it have ferrofluid or not? Reply with quote

Hello, I've just ordered a pair of these as replacements for my KEF 105.4's. I chose this route over getting, say, a pair of Morel MDT29's after reading (I think on this site) that the T33's don't actually have ferrofluid in them and therefore will not suffer the gumming issues that other KEF fluid filled tweets from the 70's and 80's do. NOW I'm reading (also on this site) that T33's DO have ferrofluid. I'm wondering if I just bought myself a nice pair of tweeters ready to be installed, or if I bought a pair that needs another $100 worth of restoration. I'm hoping that you KEF experts can clear it up for me.
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Jay
Intermediate Contributor 25+


Joined: 12 Apr 2010
Posts: 37

PostPosted: Wed Oct 15, 2014 12:33 pm    Post subject: Reply with quote

Just found this. Seems to clear things up, but if anyone can confirm?
ColinR wrote:
John I replied to this post in my email following your hard drive's demise Sad .

The T33 SP1074 used in the Ref 103-2 does not use ferrofluid cooling - it's a "proper" drive unit Shocked .

Ferrofluidised T33 mkIIs have 1210, 1192, 1195, 1197X, etc SP numbers.

Give me a squeak via email and we'll do some swapsies to test out your ears Laughing .
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speakerguru
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Joined: 18 Nov 2005
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Location: Green Hut, Tovil

PostPosted: Thu Oct 16, 2014 9:26 am    Post subject: Reply with quote

I'm pretty sure what Colin R wrote is correct. The large gap in the T33 SP numbers from SP1074 to SP1191 would also support this.
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SaSi
Senior Contributor 200+


Joined: 24 Aug 2008
Posts: 223

PostPosted: Fri Oct 17, 2014 7:13 am    Post subject: Reply with quote

Pretty certain the SP1074 does not contain ferrofluid. The SP1210 found on R107 and SP1265 on R107.2 did have ferrofluid with the SP1210 being more prone to drying out and gumminess.
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Jay
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Joined: 12 Apr 2010
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PostPosted: Mon Oct 20, 2014 1:14 pm    Post subject: Reply with quote

Well, the tweeter sounds terrific, so I'm very happy. Thanks for the input.
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