[Wintersxx866]

So just like the title says, are there any IEMs that have the same sound signature or a signature that is rather close to the Fidelio X1? 

 

[PETEREK]

First that comes to mind is the TF10 (UE Triple-fi 10), it has a little more high end extension but it pretty close in most every other way, including it's great bass and soundstage.