Bought these circa 1999 (ex-dem) and much enjoyment they have given me. A couple of years back I had the crossovers completely rebuilt, the internal wiring replaced and new terminals installed by Paul at RFC (what a guy!).

A year or so again they seemed to have gone 'off song' a little and, after much agonising, I decided to retire them and ended up replacing them with a pair of ELAC FS267s.

I now find that I need to create more space in my listening room, meaning that the KEFs need a new home, but before finally parting with them I thought I should try to establish what might be wrong with them.

It didn't take long to discover that the most likely cause was that tweeter (NT25) ferrofluid had dried out and needed to be replaced (sadly, spares are no longer available). Ferrofluid of the appropriate type is not difficult to obtain, nor are instructions for the removal of the tweeter from the Uni-Q and the removal and replacement of the dried ferrofluid.

My dilemma is whether or not to attempt this myself with a view to selling on the KEFs or to offer for sale 'as is', and priced accordingly, with the clear caveat that they will need some TLC. Of course, I could just take them to the municipal recycling centre and save myself the trouble of fixing them and the hassle of selling them, which would be a shame as the rosewood cabinets, whilst not 'as new', remain in good condition.

Any advice appreciated, but especially from those who have experience of replacing the ferrofluid of tweeters (KEFs or otherwise).

many thanks in anticipation.

Jon ;-)