Boy, you have *no idea* who you're criticizing, do you? Have you looked at David Rich's audio credentials (M.Sc., Ph.D. EE)? Are you really not familiar with The Audio Critic? Peter Aczel? Nothing? No bells?
If actual, objective proof of a component's terrible build quality isn't enough to sway a true believer, well, then, nothing will. That DAC was a Yugo being sold as a BMW. No need to drive it.
Let us know when you can distinguish between two different amplifiers that measure the same--or even differently. This has never been debunked: http://bruce.coppola.name/audio/Amp_Sound.pdf