I see. That makes sense. I would avoid it. Thanks again for the advice!

Hi Oscar, Thanks for the reply. I actually bought this amp for my Beyerdynamic DT1990 Pro, not for K3003. I was curious about whether this amp can be of some improvement to K3003. If not, I will not use them together.

Hi all, I know this question may be silly but I wonder if it is safe to use Beyerdynamic A20 with AKG K3003? Because the output impedance of A20 is said to be within 30~600 ohm, and the impedance of K3003 is only 8 ohm. Will there be a problem if I connect these two together?

Hi guys, the IEM arrived yesterday. After a careful check, I think this is authentic. It sounds way better than the IM03 with a balance cable on my Luxury & Precision L3. The soundstage and the details are unparalleled. I think this is a great bargain.

I see. I'll try to contact AKG after I received the IEM

Thanks for your reply eargasam. I know that each K3003 has a unique serial number, but is there a possibility that the serial number is also fake?

Hi guys, just now I saw a $629 K3003i on Amazon. It is sold by a seller who has only 4 rating history.  I know that Amazon hardly sells a fake product. But since it isn't sold by Amazon.com LLC, and is at such a low price, I wonder if this is fake... Actually fake K3003s has been reported in...