I took delivery of the DS yesterday. Initial impressions ... more height and width to soundstage, more air around instruments and voices, lots of micro- detail, and more b@lls to my system. No doubt, the "b@lls" part (in terms of slam and impact) comes from the large output caps running my low impedance power amp and sub. Only have about 6 hours on the preamp, but I like what I hear so far. DS says the unit really opens up after about 50 hours, so we shall see. It's very different from the BAT, but I will not be in a hurry to sell the BAT, if at all. Evaluation periods can take some time.