John Siau's video, and I watched quite a few, are typically very good for people with basic EE principles related to this hobby but they also could mislead (of course unintentionally) a lot of people if they don't watch the whole thing, preferably at least twice.
As
@lovinthehd alluded to..., one has to understand.......
. For example, one of the take aways for me is that people who might focus on power amps, could almost do better by focussing on the room and speakers more, based on audible sound quality benefits. In terms of objective measurements, in absolute term, class D amps such as Hypex, Purifi, and some ICE based amps such as Marantz Amp 10, 20, and other well measured ones, along with Benchmark's class AB amp, namely the AHB2 are going to be among the top picks that mostly have noise/distortions below the audible threshold when used at well below their rated limits, but not something like the Parasound Halo models regardless of the fact that even Gene and John may not likely hear a difference in a DBT AB comparison between the worst and best power amps mentioned in this video.
Also for example, the high level of noise/distortions for the worst amp at 100 W output level would not likely be of concerns for most people if we keep in mind that for speakers with sensitivity above 85 dB, at say 12 ft, will produce 79 dB SPL with just 1 W, that's not that great for people who listen to reference level for sure, but in that scenario, "masking" will save the day anyway, rendering such a concern practically unnecessary, no wonder I spent so much time in room correction/eq and always keep an eye or known media contents that has excellent recording/mastering quality.
