Yeah, he's talking about the motherboard's integrated dac/amp.
While they aren't a awful as they used to be, esp when it comes to high-end "gaming" boards, they still aren't to the same quality as a separate DAC/AMP, esp since PC cases are notorious for electrical noise. Even the formerly ruling "sound cards" have nearly died off for similar reasons.
The integrated solutions are usually fine for most consumer grade speakers, cheap powered monitors and most typical headphones. Ideally, you'll want to get an external amp for use with unpowered speakers, like the NX-Studio.
Ideally, you're going to want to get an integrated dac/amp or separates that are better suited for unpowered speakers.
Personally my plan is to use the PS-Audio Sprout 100 to power the NX-Studios when the time comes, but you could just as easily use something from Schiit or any other decent brand out there.
But thanks to the recent issues with human malware my Sprout's been delayed, but I'm not in any rush fo get it.