Now if you would do a double blind test showing different DACs, all of differing (confirmed) performance, then this discussion would have actual scientific merit. you hear me?
That would be a different test.
More like, how bad does a DAC have to be before being audibly identifiable from pretty much any remotely competent DAC made in the last 20 years.
Most state they hear a difference between ALL of them. He clearly showed whatever that level is, it's below whatever he's got, and likely low enough to not need to be concerned about.
Seems like that's a lot of merit.