I would agree with Rtn1. While there are some fantastic holographic speakers out there, I have not heard a single system that did so many things so right as the TAD reference One.
Interestingly, the smaller TAD Compact Reference speakers come very close, yet can't quite match the Ones in sheer authority, power and soundstage in very large rooms. For smaller rooms, the TAD compact reference is a fantastic speaker (priced reasonably at mid thirties for what it does), given the competition we heard - with very few excellent exceptions like Marten - rolls out speakers that cost more and do less right.