A soundbar is a speaker system designed to improve the audio quality of a television. Soundbars typically use multiple speakers to create a wider soundstage than a traditional television speaker, and they can also include features such as Dolby Atmos or DTS:X surround sound. A 2.2 soundbar has two main speakers and two subwoofers, which provides a more immersive audio experience than a 2.0 soundbar.
Budget soundbars are a great way to improve the sound quality of your TV without spending a lot of money. There are a number of great budget soundbars on the market, but the best budget soundbar under $100 is the Vizio SB3251n-F6.