I like the Mobius. It's not Bass light in general. It's a little bass light with 3d on in default. "Music" is a bit boring and clipped too much in the upper frequencies. It's not nearly as dialed in as Default. There isn't really a great setting for EDM and Hip-hop with 3d engaged. It's just not there. The Sub-bass is there. I know what t listen for. I've worked in a recording studio. I've worked in a club. I'm not "wrong". Strong, exaggerated bass is a popular setting for some forms of modern music. Most headphone products can't resolve well enough to do without lot's of audible distortion and making the mids muddy. These could. Where is the EDM/club, hip-hop setting? There's no reason why it's missing. These are not marketed as audiophile only headphones. Racing has nice sub bass but definitely isn't tuned there for that.
Flat isn't using any DSP and isn't the intended tuning for the headphones. I like the character of it, but it obviously is a little rough in some frequencies. Some are ducked and there are some peaks. Especially the highs. It works for a lot of stuff but is a little harsh on some stuff. The lows don't have that nice Harmon-esque curve on that setting either.
You're not right. You're rigid in how it should be in a perfect world, which isn't this one. Music is mixed in all sorts of ways these days. EDM and Hip-hop for example are meant to to be played on resolving bass heavy equipment. Just go to any show and pay attention.Or go to the Imax.
@Audeze