All in one as said is a boombox with limited separation of left and right channel. All in one could be a B&W Zeppelin, the Meridian Ellipse Streaming Speaker or Sonus faber Omnia all-in-one wireless speaker. I guess B&O Level and A9 are stereo speakers in one box also.
All in one stereo pairs include all the Mozart platform speakers from B&O as they have built in streaming, internet radio and inputs for analogue and digital sources if needed and some kind of option to scale to surround at a price. Beolab 8 and 28 offer more choices whilst retaining the Mozart streaming and connection options as they have powerlink and WiSA for TV and computer connection via a WiSA wireless transmitter (built into some TVs).
Devialet also offer streaming and a different egg shaped box(es).
www.stereoindex.com
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