wider stage...very very wide. detail is superior. There is a triangle hit on the classic "Tin Man" by America listen with your Z5 and see how clear it is. Only one of my IEM plays it clear with no eq and that's the 800st. Even if I cover vents it is still impressive. A BA driver should dig that instrument out easy but the Angie i heard did not. Comes in around the 40 second mark. It's what we called (my car audio club) a sonic rally pole. A specific musical event that can be gone over again and again by others. It is subtle but a very high note and elevated bass can easily obscure it. A well tuned set should give me bass and minutia in the top end.