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Ferrofluid tweeter

I recently purchased a pair of B&W P5 speakers that were made in 1997. After making sure all the old ferrofluid was removed entirely, it was time to add the magic. While adding the ferrofluid, I purposely put 60ul into on tweeter and 100ul into the other. One thing for sure, it made a huge difference in voice clarity, no more muffled sounds coming from the tweeters.

There is a slight difference between the tweeters because of the different amounts of ferrofluid used. The tweeter with 60ul is a little brighter than the 100ul, but can’t decide which one I like better. Once I decide which one to go with, I’ll even the two tweeters so they will match in sound.

Has anyone used less than the required amount of ferrofluid in a tweeter, and would there be any harm in doing so?

The tweeters I have are 1 inch and require 100ul.



prestons

Showing 1 response by kijanki

kijanki's avatar
kijanki
4,446 posts
 
My Hyperion HPS-938 speakers use ferrofluid for 6.5" midrange driver suspension (no spiderweb) and most likely in 1" short horn dome tweeter. They are at least 5 years old but I cannot hear any sound deterioration (I think). Hyperion Sound doesn’t exist anymore and I have no way of knowing what type or amount of ferrofluid is needed. Is replacement of ferrofluid a standard service done by the music store, speaker technician etc? What are the symptoms of dry ferrofluid?

http://hyperionsound.com/HPS-938.htm
http://hyperionsound.com/m_f_d_s_.htm
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