Comparison: Sonos One vs Harman Kardon Citation ONE - Coolblue - anything for a smile
Harman Kardon launches Citation series of Google Assistant spea
Sonos One vs Harman Kardon Citation One - similar pricetag, IMHO Citation has better sound and I finally have that Chromecast support I was begging Sonos for! Ask if you have any
Harman Kardon Citation Amp Challenges Sonos and NAD - Tech Reviews