whirlwind
Headphoneus Supremus
just got my new spring 2 delivered, upgrading from an audio gd NFB1 (2014), and was occasionally using an Onkyo SE-300 PCI-E (dual PCM 1798) it really amazed me how much clearer, more detailed and natural the spring 2 in NOS mode (USB in) sounds! god it's not even properly run in as the factory suggest for 300-400 hours of standby to keep thermal stability!
Congrats. I love these dac's and since I have had mine, I have not even thought about getting another.
Super musical and never harsh on any of my amps.