problem with new speakers

Kushantaiidan

SPASIBA AX.
I just bought some new speakers
They consist of a subwoofer and for sattelite speeakers
Two of them being tweeters.
The midrange speakers pop in some songs.
It's as if the signals to the speakers aren't being divided properly or something..

I'm really not to sure.. That's why I'm askin you guys.

I keep getting this pok pok pok noise while listening to some ulver..