The 8400 are analytical in a fun way, yes, that is indeed possible. I find it quite neutral throughout, but also natural and not sterile as you might think. Build quality is tank, every component used is built to last since it was designed to be used in the studio. As for the detachable cable, I find it good in terms of build quality. It has a tendency to sometimes curl, but doesn't tangle up though. This headphone aims more for transparency but on some recordings with real or vintage instruments it can still give that warm analog sound. Although If I had to pick one side it would be transparency, but that doesn't mean that the headphone can't bump and kick. The bass extends deep into the 20 Hz region. Both my Denon AH-2000 and KNS 8400 can go deep, but the experience is different. Over time I have learned to appreciate both. The bass on the Denon's is slower throughout, while it's audibly faster on the KRK's. The Denon rumbles like nobody's business, while with the KRK there really isn't much impact in the sub-bass and rumbleb however you can easily hear that it's there and very fast, textured and layered. For electronica, the KRK can keep up in the speed but I find them lacking in the impact factor at times. Although for rock, pop and hip hop, they actually kick in the right place every time. As I said before, the KRK does really really well with real instruments and live recordings as their tonality can truly let you appreciate the true flavour of the instruments more than Denon or Ultrasone. The Shure's are also up there but I would give the edge to KRK.
Also RK offers replacement cables from their website so if something goes bad, you can get another one, but you shouldn't need it (for a long time at least)