Acoustic Zen, Reference 3A and ATC

Hi,

Which ones of the above mentioned produce a sound with faithfull tonality? I read in a review of the Reference 3a mm de Capo that "tonality is spot on", how the other two companies compare with Reference 3a in this regard?

And secondly, again considering all the three companies: Are they harsh or easy on ears? How easy? I have in mind long listening sessions.