Please refer to my previous post as to my source used. I find your notion of having a somehow inferior or inept source absurd. Call me cynical, but I highly doubt a source could take this signature from being this dark to being miraculously lively. To each their own. As to the burn in, yeah it may change for the better given some time, but again, I don't see enough change being physically possible. It's just a dark Sig. Honestly, it's got a nice sound. I know it's tough to express discontontent about a product without coming off aggressive or dowright blasphemous, and that's not at all what I'm trying to do here. Simply put, it's a very nice piece of kit. I think you'd be hard pressed to find someone who will call it a "bad" sounding IEM. It's just too dark for me.