Because I have a pair of GENUINE MDR-ZX100 headphones purchased from Best Buy, I'm fairly confident in stating that the two additional pairs I bought from Amazon (albeit at a too-good-to-be true price of $14 each) are shoddy knock-offs

Knock offs

I eventually went back to my cheap-o Sony portable headphones because I am still trying to find a decent sound signature and soundstage sounding headphones

I eventually went back to my cheap-o Sony portable headphones because I am still trying to find a decent sound signature and soundstage sounding headphones