Skip the new Sonos hardware — these excellent older soundbars and headphones are now up to 20% off

Sonos just announced two new big pieces of hardware to its lineup: a Sonos Beam Ultra soundbar and some Sonos Ace Ultra headphones. And while they both sound like solid upgrades to the manufacturer's top-tier audio tech, you'll have to pay a premium for both products. Luckily, though, as part of this year's Labor Day sales, several pieces of...