Well, at least he’s honest about using his products the most and not having enough experience with R2R.
Let’s say I’m all about measurements. I don’t get why I should waste my money on Chord products when a PCM to DSD converter + Topping E30 or D90 set on Direct DSD gives me the best quality I could get.
Something like HQPlayer has lots of different filters and algorithms. Even Neutron Music Player has better filters than most of these DACs. I can get a customized sharp filter with lots of attenuation with Neutron. Even D90 can’t do that.
D90 has a spike in ultrasonic frequencies which is the result of poor attenuation.
R2R is more about personal taste. I don’t like R2R but I can see with certain genres it sounds subjectively better.