Before reading my rant, first review the video in question from Marques Brownlee, considered the "best technology reviewer on the planet right now" in 2013.
His video is about the quality of onboard DAC/amplifiers on the sound card embedded with most motherboards inside of computers. Firstly, he refers to it as "Digital to Audio Converter". Just google it - that does not instil confidence. Secondly, he makes this very broad statement:
As a general rule people buy external Digital to Audio [sic] Converters because the internal ones that are built in to our computers that feed directly to the output headphones jack basically, are typically really really bad.
Thanks to the raging wildfires here in British Columbia, our moon is a not-not blood moon:

I am happy to say that my company, PWN Consulting is exactly 16 years old today, and still going strong.