I highly recommend Aurrender streamers. But also to buy a separate streamer and DAC. An N20 is an incredible streamer and you should match it to an equally great DAC. I have not myself analysed the sound of the A series DACs, but there is no lack of folks that say they are pretty good (damned by faint praise). But I have compared Aurrender streamers with other stand alone and some that were integrated with a DAC and in the same and sometimes with higher level streamers the Aurender comes out ahead. So highly recommended.
But if you later choose to upgrade either the DAC or streamer then you are stuck if you have an integrated. And both pieces are critical to the sound you get out.