LG US90TY vs Sonos Arc Ultra

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US90TY compared with Arc Ultra

	LGUS90TY	SonosArc Ultra
Overview
Released
Released	May 2024	October 2024
Sound
Type
Type	Soundbar	Soundbar
Channels
Channels	5.1.3	9.1.4
Dolby Atmos
Dolby Atmos	Yes	Yes
Drivers
Drivers	Maker 5.1.3-channel layout with centre and two additional upward-firing channels; no rear speakers included	Nine silk-dome tweeters (two firing upwards), six midwoofers and a Sound Motion woofer (four motors, dual membrane)
Amplifiers
Amplifiers	Maker claims 570 W system output; measurement basis is not stated	Fifteen class-D digital amplifiers
Audio formats
Audio formats	Dolby Atmos, DTS:X, DTS Digital Surround, Dolby Digital, AAC and AAC+; 24-bit/96 kHz high-resolution audio and upsampling	Stereo PCM, Dolby Digital, Dolby Digital Plus, Dolby Atmos (Dolby Digital Plus); with HDMI eARC also Dolby Atmos, Dolby TrueHD, Dolby Atmos (TrueHD), multichannel PCM and Dolby multichannel PCM; DTS Digital Surround
Room tuning
Room tuning	AI Room Calibration Pro through the app; AI Sound Pro adapts to content. Smart upmixing operates in AI Sound Pro, Cinema, Clear Voice Pro, Game and Sports, not Standard or Music	Trueplay (iOS and Android); bass, treble and loudness adjustable; Speech Enhancement with four levels; Night Sound
Connections
Wi-Fi
Wi-Fi	Yes	Yes
Bluetooth
Bluetooth	Yes	Yes
AirPlay
AirPlay	Yes	Yes
HDMI eARC
HDMI eARC	Yes	Yes
Voice assistants
Voice assistants	Alexa and Google Assistant	Alexa and Sonos Voice Control
Wi-Fi
Wi-Fi	–	Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 GHz and 5 GHz
Bluetooth
Bluetooth	SBC and AAC codecs	Bluetooth 5.3
Ports
Ports	One HDMI input, one HDMI eARC/ARC television output, optical input and USB. HDR10, Dolby Vision, VRR and ALLM passthrough; UK specifications list 120 Hz, but footnotes restrict VRR passthrough to 60 Hz and 4K 120 Hz to YCbCr 4:2:0	HDMI eARC; optical through an adapter sold separately
Streaming
Streaming	AirPlay 2, Chromecast, Spotify Connect and TIDAL Connect over Wi-Fi; Bluetooth. Services depend on region, subscriptions and firmware	Apple AirPlay 2
Multi-room
Multi-room	Wireless subwoofer included; rear-speaker expansion supported separately. WOW Orchestra combines compatible LG television speakers	Groups with other Sonos products over Wi-Fi; add a Sonos Sub (or two) and rear speakers; TV Audio Swap to Sonos Ace headphones
App
App	iOS and Android remote app; WOW Interface integrates soundbar controls with compatible LG televisions	Sonos app (iOS and Android); works with the TV remote
Design
Weight
Weight	5.65 kg (better)	5.9 kg
Controls
Controls	Supplied remote and bar controls; AI Sound Pro, Standard, Music, Cinema, Clear Voice Pro, Sports, Game and Bass Blast modes	Capacitive touch controls (play, pause, skip, replay, volume, voice mute, grouping); Bluetooth button; microphone switch
Microphones
Microphones	Built-in room-calibration microphones; Alexa and Google Home compatibility uses external devices	Far-field microphone array with beamforming and multichannel echo cancellation; switch cuts power to the microphones
Mounting
Mounting	Supplied wall-mount brackets	M5 × 0.8 mm thread, 6.5 mm deep; Arc Ultra Wall Mount sold separately
Size
Size	Bar 1250 × 63 × 135 mm (W × H × D), 5.65 kg alone; subwoofer 201.7 × 407.0 × 403.0 mm, 10.0 kg. Gross packaged weight 22.2 kg	75 × 1,178 × 110.6 mm (H × W × D)
Colours
Colours	Black	Black, White
In the box
In the box	Soundbar, wireless subwoofer, remote control, HDMI cable, wall-mount brackets and warranty card	Arc Ultra, power cable (2 m), HDMI cable (1.5 m), documentation