The Sonos Arc is our pick for the best soundbar of 2020, with a cheaper version of the Dolby Atmos bar coming soon, according to the multiroom audio brand. The Sonos Arc SL has been spotted by eagle-eyed shoppers in the United States on Costco shelves, and while it's yet to be officially announced, Sonos has since confirmed its existence, according to Android Central. A Sonos spokesperson told Android Central that "customers can purchase the Sonos Arc SL Shadow Edition, which is available exclusively at participating Costco stores in the United States and Canada." “The Sonos Arc SL Shadow Edition delivers the immersive sound customers appreciate from Arc in deep black with no built-in microphones. Arc SL Shadow Edition is available to Costco members for $749,99 US / $949,99 CAD, and will be available at Costco. com later this month. No word on global availability yet, but it comes down to around $550 / AU$1,000, cheaper than the original Sonos Arc, which costs $799 / £799 / AU$1,399.