HARBETH: ” ….. not interested due to age and say they no longer have any parts for these “

The thread starts: 

Professional Speaker testing ? Hi. I have a pair of Harbeth HL1 MK4 speakers . Harbeth are not interested due to age and say they no longer have any parts for these. Can they be tested other that If they sound OK they are OK.  Also how would you test the cross over units ? I want to make sure they are as good as I can get them / restore them for use in my system. Any advice welcome ( other than buy a new pair )

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