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RE: How long does ferrofluid in tweeters last?

Posted by MWE (A) on July 21, 2015 at 10:25:10

In Reply to: How long does ferrofluid in tweeters last? posted by George S. Roland on July 21, 2015 at 09:35:33:

It does dry out after ten or more years, depending on on operating conditions. It gets thick and gooey when old. I replaced the ferrofluid a few years ago on two pairs of early '80s Boston Acoustics speakers. Parts Express sells kits to do this, very modestly priced. The tweets do have to be disassembled. The BA tweeters (SEAS domes) are pretty simple to take apart, not sure about your tweets; someone else may be able to help here. Once apart, the old is cleaned from the gap with small pieces of paper (supplied) which I lightly wetted with a little alcohol. Don't DRINK any alcohol while doing this, LOL. The new fluid is squirted from the little tube and the magnet sucks it into the gap. Hope this helps. See link below.

Mark in NC
Mark in NC
"The thought that life could be better is woven indelibly into our hearts and our brains" -Paul Simon

• http://www.parts-express.com/ferrofluid-100ul-general-purpos   (Open in New Window)

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