Interesting technical info about the 400/800

[Jwg1749]

I hadn't heard of the "unique Magic Wire DAC" in the questionnaire about brand. It was the only thing on their list I was unaware of.

The first reference to the DAC technology I'm aware of was in the D-Premier white paper produced for the Munich show in spring 2011. This is what it says about the DAC (and n.b. the use of the word "magic"):

Patented ultra linear, high-voltage DAC
Moving further upstream, the DAC is the next key block of the chain that sets the music quality. It has been designed in
light of the following observation: processing means altering. At system level, the gain stage is removed and the path of
music is minimized for this reason.
In the DAC, the output current of the highest performance device available (T.I. PCM1792) is directly converted into high
voltage without any processing in between: no operational amplifier, no current mirror. Instead, a fully original very
complex leak-less path is designed to carry the original current of the DAC to the only two ultra high-linearity resistors in
the system. The magic comes from the fact that the guiding elements around this path do not process the music.
Besides, the characteristics of any device is related to its temperature, so if temperature changes, music rendering
changes as well. To make the system thermal distortion-proof, all the parts which build the guiding boundary are
designed to operate at constant power (dual cascode), hence constant temperature.

Matt