I had the N20 and it fed my DAC via Shunyata Omega AES and also Omega ethernet
it was a stunning combination. immediately noticed a vast improvement when upgrading to the Shunyata Omega
unfortunately my system was destroyed via lightning and flood damage
I now have a Lumin P1 DAC/Streamer but went back to the shunyata Omega Ethernet
Not sure what a used omega would cost But it was a fantastic sounding set up