T33 tweeter....-ve +ve wire identification

[philv]

Hi,

i am replacing the tweeters in my key 104/2.

However, the t33 don't appear to have pos neg markings on them.

They have brown and blue wires.

Is it usual that the blue would be positive and the brown negative?

If i get it whong, what are the consequences?

Thanks

[philv]

Got it.
it is indicated on diagram inside speaker.
Blue pos.
Brown neg.