The SNR and distortion specs are PCM1792 measurement. It got kick ass signal input and digital stage. Overserving from its 2kg weight, one should not expect more than a single power transformer and opamp analog stage. For the money it is light weight. I mean will be lighter than the sum of the cables connecting to it.
It could be good value in audiophile sense as it got a volume control and can function as a preamp.... But sorry to mention again it weigh only 2kg?