Thanks everyone, I appreciate the help.
Long story short.... I received my NOS19 (Amanero) a couple days ago, and I've been experiencing a sharp pop/tick/clip in my audio at random.
This issue does not happen with my Modi MB - same cables, computer, 2 different amplifiers, and I'm running a tripp lite conditioner at the pc and isolator for my amps/dacs.
I've reimaged my pc, reinstalled drivers twice, and tried all sample rates.
The NOS19 with Amanero pops at random (every 20 seconds or so, sometimes more often) and the Modi MB doesnt.
Pop isn't super loud, but just very sharp and fast, like clipping.
I verified the Amanero is using their latest driver from their website - next I will try the old driver.
Disabled all Windows sounds, enhancements, and gave the Amanero exclusive control mode.
I also cannot seem to use spdif with either the Modi MB or NOS19. It pops and clips aggressively! All sample rates....etc.
I'm running a Gigabyte G1 gaming mobo, corsair water cooler, Corsair HX860i psu, tripp lite conditioner, Jitterbug....etc. Still getting some USB noise, other than the pops from the NOS19.
Maybe time for a digital to digital converter? More money....ugh. Shouldn't need more things to make this pop go away.
I will try the implementations mentioned above, but don't see why a great USB card such as the Amanero would do this.
Thanks everyone.
S19 on the way
Reviews to come.