Over 500 Hours: The DAC will continue to change subtly
What's the return period? 500 hours is 20 days. How would they/you convince skeptics it needs break in let alone over 500 hours? If they give you a 60 day trial, I wouldn't have any issues but over 500 hours does not seem commensurate with a 30 day policy. It's a tight fit and requires the DAC to be left on 24/7. Something does not fully add up.

