I am torn between tinny and muffly. Without the rings, they sound less like the universal can I have been looking for; they are too thin like this. Yet, the one man's "thin" is the next man's "airy and spacious". (It is more than one man speaking here, obviously.) There is something to that. With the pads on, some, but very little detail in the mids is lost. Mmmm, now taking the pads in and out, depending on what I want to listen to, seems like a stupid idea. Guess I'll have to audition them more. Right now, I think I am more inclined towards the muffly side of the - still airy sounding - K600s.
I have always searched for something like my portable K24P (AKG) plus soundstage and definition. These are pretty much there. Though not quite. Maybe a thinner foam ring might help to balance them between the two extremes of punchy and airy? They shouldn't be too hard to make.