My preference 100% is a pair of powered monitors/speakers fed by RCA outputs of a DAC. My reasons may differ from others--mainly, it's that I'm maxxed out for desktop space, to an extreme. I have so many components in a limited space, that I've built 2 table/stands to allow vertical stacking of components w/out having them actually rest on each other. For example, 2 of my 3 routers are underneath a 10" stand, on which sits a Marchand external crossover (large), and on top of that is an Aphex 124A unbalanced-to-balanced (and b-to-u) converter. There's just no room for even a modest sized amp to run passives speakers. Wish there was--there are many very attractive candidates.
Also, I've used powered speakers for 10+ years in home office w/pretty good results. After 10+ years listening to crappy "computer speakers" (no DAC, just soundcard as source), I wised up ~2006 and got a then SOTA system: Stello DAC + NHT M-00 powered speakers w/NHT S-00 powered sub. That was a huge step up, and yet...the Stello through those speakers was fairly bright to my ears. I messed around w/various tweaks (Margoles Audio "Digital Lens" ... iFi iTube line-stage), but finally bagged just upgraded the DAC to something that sounded better to me (Peachtree Audio iTx). Then I upgraded the speakers to Swan M200 MKIII's; then got an R2R DAC, which transformed the whole "digital experience" for me (Audio GD NOS 19). And finally, in next 2 weeks Ill replace the Swans w/a pair of Yamaha HS7 powered monitors.
Which raises a critical/related point: if you try to find high-quality, "audiophile" powered speakers, there are just a few names (KEF; Paradigm; Swan), and 99% of what you'll see are relatively small (5" woofer), modestly powered speakers. Some of these, like the KEFs, are said to sound very good (the Swans are quite good IMO)--but I want a larger woofer (6-7") for better upper bass/lower midrange (the SVS handles everything below 80 Hz).
...which leaves the really vast, perplexing array of powered studio monitors. There are countless choices, all different designs, sizes & power ratings. The problem w/powered monitors isn't lack of choice--it's trying to figure out which ones might actually sound good for music listening--which is beside the point of studio monitors' primary design objective: "flat," uncolored audio reproduction permitting forensic/clinical sonic judgements used in building of audio "mixes" (music pre-production). Because "pretty sound" is of near-zero concern for designers & builders of studio monitors, and because 99% of the "user comments" are from studio pros, not music lovers/audiophiles--it has taken me months of research to identify studio monitors that might actually sound good. It's all guesswork; I'll find out if my bet pays off when the Yamaha's (actually, the ZenPro modded HS7's) arrive and finish burning in.
The above paragraph is an extremely truncated explanation of a rather deep & ongoing debate about "good sound" vs "accurate sound" in studio gear. There remains a pretty wide gulf between "audiophile equipment" (and users) and "studio equipment" (and users), though you can find all sorts of bridges/connections between these camps if you look hard enough.
(sorry for long answer to short question)
PS: Due to space limitations, and in some cases, cost concerns, I'm unable to purchase the powered studio monitors I really dream of (ATC SCM20ASL; Hedd Audio Type 07; Quested MKIII S8R; a few others). It's just not a perfect world, sad to say...