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Tweeter Blown OR Crossover? How to check?

I have a pair of Revel M22 monitors that I suspect one has a blown tweeter (no sound at all).  Am planning to purchase a pair of new tweeters, but dawned on me that I should check "output" at the speaker wires where the tweeter is .... maybe not tweeter and crossover instead?

How can I check that?  Can I clip leads onto those wires and hook into a small bookshelf speaker to check?  Or is that a no-no?

Nothing labeled on the tweeter to say positive or negative .... just one white wire (with blue stripe) and one black wire.  Guessing the white is positive and black is negative?

If it is the speaker, I'd guess I would install the new tweeter same way and hook up wires according to which way they are now (same) since there aren't any indicators on the speaker itself....

Please forgive my terminology if incorrect.

scot_m
scot_m OP
25 posts
 
Boy do I feel stupid .... the tweeter I tried from the Polk doesn't work even in it's own enclosure.  They are a set my son used and I didn't test them before I used them for testing.  He must have blown them or something.
Regardless, I pulled the 5.25 inch driver out of the Polk (that is working!) and ran leads to the Revel tweeter connectors and YES, there was sound coming from the 5.25 inch speaker ..... so there is "sound" coming from the tweeter wires of the Revel .... so I would think that tells me the crossover is working?
yogiboy's avatar
yogiboy
5,661 posts
 
Yes it sure would!
scot_m OP
25 posts
 
So, since I believe this tells me the crossover is fine, I will unsolder and then put the meter on the speaker itself and see if it reads anything .... as a double-check.  I will let you know what I see.

As I'm certainly not someone on here often, or very educated about working thru audio issues, I am sure grateful for the input and help you all have provided.  You are a wealth of information.  Appreciate It!

I'll get back on the meter test.
imhififan's avatar
imhififan
2,181 posts
 
You don't need to desolder the tweeter for 1.5V battery test .
BTW, caution on the strong magnet in case you want to do any soldering/desoldering.
atmasphere's avatar
atmasphere
11,794 posts
 
Sounds like you have it sussed out- the tweeter is blown and the crossover is good.

The tweeter blew because the amplifier used to drive the speaker was clipping (same as in your son's speakers). If you don't plan to go to a more powerful amp, install a fuse in series with the tweeter so that it blows instead of the tweeter. Fuses are a lot less expensive! I'd put the fuse holder right by the tweeter.

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