A basic ARC connection can pass compressed audio formats, while the newer eARC connection (enhanced Audio Return Channel) can pass an uncompressed Atmos signal, if both the TV and soundbar support eARC. HDMI ARC connection: Almost all of the soundbars we tested have an HDMI ARC or eARC (Audio Return Channel) jack, which lets you transmit audio via a single HDMI cable between the TV and soundbar.Wi-Fi systems such as AirPlay, Chromecast, and Sonos are more complicated to set up, but they offer potentially better sound quality than Bluetooth because they do not apply additional data compression to the audio signal, and they can work in conjunction with other compatible speakers in a multiroom audio system. Fortunately, most new soundbars have this capability. Wireless audio support: We considered only those soundbars that had the ability to stream music from a phone or tablet, via Bluetooth or Wi-Fi (or both).Because all of these soundbars might be of interest to different people, we tried everything we could get our hands on. Many new models push this even further our upgrade pick, the LG S95QR, offers 9.1.5-channel sound. Bars that incorporate Dolby Atmos support are usually labeled “5.1.2” or “5.1.4,” meaning they add two or four upward-facing Atmos speakers to bounce sound effects off the ceiling. A soundbar that’s described as having five or more channels-5.1, 7.1, or more-adds surround speakers, which may be built into the ends of the soundbar or might be separate speakers. A “3.1” bar adds a center-channel speaker for better voice clarity. A “2.1” bar includes a soundbar and a subwoofer this is the most common type, and most are priced under $300. A simple “2.0” (or two-channel without subwoofer) soundbar is usually the least expensive and least complex, but generally it can’t deliver a cinematic experience.
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