I can safely say that the Merlin sound signature is nothing like any other headphone I have heard before.    First of all, the fit of CIEMs is such a luxury. You pop them in once, and never have to touch them again until you want to remove them. I always fiddle around with other headphones/iems because sometimes seals break or it gets uncomfortable. In addition, you know that the CIEM sits in your ear with the sound bores in the same exact position every time, relieving me of any concerns about positioning for optimum sound quality.   Many people...