A nice rug can really tie a room together, but I think a good soundbar has similar powers. Sonos’ refurbished outlet is offering two color schemes of the first-generation Beam soundbar for $80 off its usual selling price. The plain black and shadow black Beam are $239 each. Unlike most soundbars, there’s no wireless subwoofer that comes with the Beam; all of the sound (and a surprising level of punchy bass) emanates from the soundbar itself. It’s easy to set up, and it can be…