07-21-15: Georgelofi
Too bad the manufacturers are trying to phase out R2R Multibit dac's, they are way harder and more expensive for them to make, and they then charge up to 10 x the price for them.
And much more so for hi rez, as accurate reproduction of 24 bit data requires 256 times greater accuracy in the resistor ladder than the already extremely tight accuracy that is required for 16 bit data.
As I mentioned earlier, MSB's accomplishment in applying ladder architecture to hi rez (as well as Totaldac's, as pointed out by Agear) simply amazes me.
As I also mentioned, though, MSB's use of a sign-magnitude data format will tend to make measurements of low level resolution look as good as possible, relative to competing approaches, when the test signal is extremely low in level (as it was in their published test results). As always, the proof is in the listening.
Regards,
-- Al