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Received the Koss Porta Pro.

But what is this.. that's not the case I expected. Trying to find out if it's a fake or not turns out harder then expected.. it all seems legit, except for the leather pouch and the number 4 on the inside casing (while the other side does have the 1) as you can see in the pictures.

I'll take them to someone who can measure if it's really 60 Ohms, but decided to not send them back and just use them already.
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