I disagree with FergyMunster. And that's basically because i own and enjoy a CA 540C and a Musical fidelity DAC. The Tri-Vista, to be precise.
it made all the difference in the world, specially to spacial presentation. It is one hell of a DAC, this one. It is, however, several times the price of the CA unit. Definately beyond those 650$ even in the used market.
I have heard that the new Xdac is EXCELLENT, and that its supposed to surpass the Tri-Vista i own, and although the specs on paper are the best on earth (ACTUALLY the best on earth, no kidding) i'm now sure it can beat the 15kg tubed Tri-Vista with its massive power supplies and ultra-grade components.
I guess that whatever floats ur boat.
i'm extremely pleased.
cheers!