I heard these at THE Show this year in Vegas, powered by top-of-the-line Consonance tube electronics, with the new Consonance Droplet tube CD player as the source (in the Consonance room).
Quite frankly, the sound was absolutely phenominal... The speakers threw a very nice soundstage, coupled with excellent quality bass extension and pitch. The midrange was very pure, and highs were fatigue-free... M overall impression of the DB99s were that they pretty much got nearly everything right (about as much as could be hoped for at their price range).
The Consonance room in general was my pick for best room at THE Show for "sane money." Obviously, the DB-99s played a large role.
To *my* ears, the DB-99 mkIIs are right on par with the Tyler Linbrook Signature System as the best sounding speakers in the 10K/pr. and under price range... Very good stuff indeed... Also, in the DB-99s case, that 99db efficiency rating makes them an excellent candidate for lower powered tube amps and the like.
---Dave