I'm not offended by the "fun" term, although it tends to take away in some people's minds from detail and true sound. I don't think these do. They are warmer (considerably even) than an Etymotic product, but not really more than the W4. Is the W4 fun ? I thought the W3 was a "fun" phone by definition due to it's more "V" signature. So again it's what the writer's definition of the term is.
The SM64 takes away a lot of the thickness in mids that I believe (some) people disliked about the SM3. They extend better both directions. They aren't sibilant. They produce really low bass tones. They make vocals come alive.
Are they perfect for all people? Nope. Are they an improvement if you like Shure/Westone/Earsonics signatures? Yes.
They still have that crazy behind you sound signature too. Weird.
Whatever, my point is it's all a terminology difference (which I believe was also your point). I'm more comfortable with the terms neutral/mid-focused/bass-heavy/detail-focused(analytical). Heck even the "warm-sweet" terms get confusing.I've never used the term 'audiophile' to classify any headphone (other than referring to high end audio). Audiophile is by definition a hi-fi enthusiast. Textbook definition. I'm not making that up. If they mean neutral, they should use that term.
Neutral headphones don't necessarily sound 'correct' to my hearing. They sound bass-light,despite the nice focus on detail that results. Maybe my hearing is crap, I'll accept that.The SM64 sound more "live" or full speaker sound than I've heard in an IEM before. I would not label that non-audiophile. We are all audiophiles or we would not be here.