These are realy professional monitors. Their sound is not funny at all:
Quality, but weak bass; thin midrange; very detailed treble.
Compared with similar Einsear T2, T2 have bigger, but boomy bass; much fuller midrange, less forward treble.
I choose one of them for traveling to downtown. Probably it will be T2....

cover the vents and you will get a new bass-experience
I would take the D4 instead of the T2

I have bad experience with covering the front vent. In most cases, treble start to be sibilant due to loss of airness.