How to check speaker crossovers

[Nickos]

Hi,
what is the best way to test a crossover?
I have some problems with my Quested vh2108. :-\

 

[pstamler]

What's not happening? No sound from the tweeter? Woofer? What?

Peace,
Paul

 

[Nickos]

The woofer has less volume than before.
I've changed the speaker and checked the amplifier but they are ok...
The only other thing is the crossover... ???

 

[pstamler]

Is this a crossover with both a capacitor and a coil in the woofer section of the crossover?

Peace,
Paul

 

[Nickos]

The loudspeaker is not easy to open... i can't see how the crossover is made...  :-[
There's a way to check it testing ins and outs in some way?

I would like to open the speaker only if i really need to....  :-\

 

[abbey road d enfer]

Then the only way is to measure the transfer function of the x-over (with its load attached), and compare with the other.

 

[Nickos]

ok... and how?  ???
I have a signal generator, a spectrum analizer and a tester.
I think I can't simply connect them to the speaker, because it's a 8 ohm device.....  ???

 

[abbey road d enfer]

You need a power amp between the generator an dthe input of the x-over; don't need much power (1W is enough) but need the low output impedance. You can connect the spectrum analyser directly across the output of the x-over.

 

[Nickos]

i need to keep the load or can i disconnect the speakers?

 

[pucho812]

have you tried swapping the woofer to see if the problem goes with the  suspect woofer?

 

[Nickos]

have you tried swapping the woofer to see if the problem goes with the  suspect woofer?

Yes, the first thing i've done it's been swap woofer, amplifier and even cables... nothing worked  :-\

 

[abbey road d enfer]

i need to keep the load or can i disconnect the speakers?

You need to keep the load. Open-circuit x-over is just insane.