Kef Reference series 107 xover schematic

[jan.didden]

Hi,

I promised my friend to check out the crossovers in the head unit of his KEF Reference Series 107. Seems that at least on one side, there's excess hiss on the tweeter.
Searching on the 'net for the xover schematic was unsuccessful - hoping that someone here can help me with that?

Jan

 

[afa]

Not wanting to say.. but Kef used pretty average electrolytic (bipolar)caps on their crossovers and the Ferro fluid they used on their tweeters was crap so expect problems..

 

[jan.didden]

Yeah but noise cannot come from bad ferrofluid I think.
An electrolytic *could* do that if it was used to attenuate the tweeter level and lost a significant part of its capacitance.
That's why I need the schematic, then I can look more targeted.

But if worst comes to worst, I just have to bite the bullet and trace out the circuit.

Jan

 

[jan.didden]

Here's the KEF 107 mid/high xover that sits in the swivel top.

Jan