For the Triton Ones, they each have 1600W Class D amped subwoofers built-in... That's why each speaker needs AC power.
Sub levels can be controlled on the rear knob.
These were Stereophile's joint loudspeakers of the year a few years ago, with Kef Blade 2's.
Measured well to. The top-octave peak was there in JA's measurements but in music playback it never bothered me much, and I usually hate bright sounding playback.
https://www.stereophile.com/content/goldenear-technology-triton-one-loudspeaker-measurements
They will be releasing fully active (DSP crossover, DACs and amps) versions of the Tritons too. They'll start with active bookshelves this year and then start work on fully active Tritons towers (if the bookshelves go well I guess).