Hi Vistance, the mousai dac is basically the dac portion from the questyle qas192. I think they let an ex engineer from questyle market it because they are still friends. The Matrix M-stage HPA2 has rca output on the back with variable output controlled by the volume knob so you can use it as a preamp. This is a very sweet combo deal and more people should go for it. Warranty service for massdrop products is provided by massdrop so in some cases it's even better than the original warranty due to massdrop being in the usa. (correct me if wrong)
james.young.560272Can I connect Mousai to the USB OTG port of my Android KitKat media player and use it as an external DAC with USB Audio Player Pro app?