The S90TY is a 5.1.3 channel soundbar rated at 570W in total, paired with a wireless subwoofer. The three upward channels are what the .3 refers to, and they are the part that puts Dolby Atmos effects above you rather than only in front of you. The bar is finished in black, with a perforated grille that wraps from the front across the top.

Recessed connection panel on the underside of the soundbar, labelled HDMI IN, HDMI eARC/ARC TV, USB 5V 500mA and OPTICAL IN, with screw holes alongside — The sockets sit in a recess pointing sideways rather than straight back, so cables bend away neatly when the bar sits tight against a wall or a TV stand.

Key Features

Sound comes from above you, not just in front. 5.1.3 channels and 570W of total power, with Dolby Atmos decoding for film soundtracks mixed with height information.
Bass without a cable running across the room. The wireless subwoofer is included and rated at 220W RMS, so it can stand wherever there is a power socket.
One cable from the TV and you are done. The HDMI eARC/ARC port carries TV sound to the bar, and the TV remote’s volume keeps working.
Your console or box keeps its full picture. The separate HDMI input passes video through at 4K with HDCP 2.3, including Dolby Vision and HDR10.
Change settings on the TV screen. WOW Interface shows the soundbar’s menus on a compatible LG TV, controlled with the TV remote.
LG TV speakers can play along with the bar. WOW Orchestra runs both together over HDMI eARC/ARC or wirelessly through built-in WOWCAST, on select LG TVs.
Music files play at their original detail. High resolution audio is supported up to 24bit/96kHz.

Close-up of the top of the soundbar showing a round metal dial and touch symbols for power, input, volume down, volume up, Bluetooth and Wi-Fi — The dial and touch keys on top cover power, input and volume, so you can still change source or turn it down if the remote is not to hand.

It works with other TV brands too, as long as the TV has one of the connections available: HDMI eARC, optical in, or Bluetooth. WOW Orchestra itself is limited to select LG sets.