How to check a speaker is Genuine or Fake

As well as I remember, the fake brand that was sold from the white van was Kirsch. Obviously to fool people that didn't know the correct spelling for Klipsch.

Hy Kosst, Before posting this I surfed the forum and can't found a solution to my question. I don't think there's a similar thread anywhere.

Bjesien, The speaker box is in 7/10 condition.

It's possible that fake speakers would be so rare that they're worth more.