Glad to have found this thread. I'm on the search for a silicone CIEM that would be very best with ambient/downtempo music such as Carbon Based Lifeforms for example. I presume the ideal sound for this type of music be neutral with good bass extension, big soundstage and smooth extended highs. Torn between the Harmony 8 non-pro and Noble 4S, however, I'm worried about the Harmony having too much mid bass and the Noble not being as adequate with bass extension. If anyone could help me out here I would really appreciate it. My main IEM and sound I'm used to right now is Vsonic VC100 which is pretty similar to Etymotic sound with a bit more bass. Thanks!