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Robert Morein
 
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"Sander deWaal" wrote in message
...
said:

Then they're either broken or you made some mistake.
The bass driver is connected via a coil, the tweeter via a cap.
You'll have to measure at least the coil + voice coil of the woofer.
It is said to be an "8 ohms" speaker.
KEF speakers usually have relatively flat impedance response, the
minimum impedance dip may lie somewhere at 6 ohms or so.


Yes, I thought the same thing, untill I opened the cabinet and looked
at the crossover; its a relatively complex thing for a two-way
speaker, with 4 caps, 2 coils and 2 resistors on a circuit board.
There is definately a capacitor in series with the woofer, hence my
odd readings. Its a large 600 microfarad, which, if I did the math
right, is probably a high pass filter to keep frequencies below 60 or
70 hz out of the small woofer.


In that case, you're right of course.
KEF loads are pretty benign in general, so you won't be far off to
call this a say 6 ohms speaker.
I still think it's an odd thing to do, though.
Who would put a (I may well hope bipolar) electrolytic to such abuse?
High AC currents and electrolytics......BRRRRRRR!

:-)

My Kef Reference III's have it too.
The purpose is to protect the woofer from DC excursions.