A question!

[Dr Morbius]

I’ve been wondering when you test say a pair of tweeters and the ohm meter reads 7.8 ohms ( which is good ) and the other tweeter reads 2.4 ohms does that mean the diaphragm is bad or is the magnet losing its magnetism? Inquiring minds need to know.

Steve

 

[audio.bill]

Keep in mind that a meter reading resistance in Ohms is not the same as impedance. Impedance is composed of resistance and reactance and you're only reading the resistive component unless you have an impedance meter. To answer your question though I believe the answer would be neither. Likely the voice coil is bad since the meter would be reading the resistive component of the voice coil. Hope that helps.

 

[Dr Morbius]

It helps a lot, thank you!

 

[Porsche]

you have an issues with a voice coil

 

[Dr Morbius]

you have an issues with a voice coil

Porsche, so I guess the term is burnt out. Can it be fixed or is it cheaper to buy another one?

 

[Porsche]

Porsche, so I guess the term is burnt out. Can it be fixed or is it cheaper to buy another one?

depends on maker, some over new voice coils, others do not

 

[Dr Morbius]

Oh, I totally forgot to mention it but it’s a Klipsch K-77 tweeter. Sorry!

 

[Dizzie]

Confused?? Which reading indicates a good tweeter?

 

[Dr Morbius]

The 7.8 ohm is good, the 2.4 is really low, I hope if I put a new diaphragm in it should be good to go. Never changed one, but it can’t be too hard, right?