LG Sound Suite H7 vs Sonos Arc Ultra

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Sound Suite H7 compared with Arc Ultra

	LGSound Suite H7	SonosArc Ultra
Overview
Released
Released	January 2026	October 2024
Sound
Type
Type	Soundbar	Soundbar
Channels
Channels	5.1.3	9.1.4
Dolby Atmos
Dolby Atmos	Yes	Yes
Drivers
Drivers	Twelve Peerless active drivers and eight passive radiators; four built-in woofers. LG's US specification lists 5.1.3 physical channels; the advertised 9.1.6 experience is spatial rendering rather than sixteen discrete channels	Nine silk-dome tweeters (two firing upwards), six midwoofers and a Sound Motion woofer (four motors, dual membrane)
Amplifiers
Amplifiers	LG UK specifies 500 W output power, without a continuous-power measurement basis; Alpha 11 AI Processor Gen 3	Fifteen class-D digital amplifiers
Audio formats
Audio formats	Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, Dolby Digital and PCM. The US September 2026 revision 03 manual additionally lists DTS Digital Surround, DTS-HD HRA, DTS-HD MA and DTS:X; this updates the launch-era UK FAQ and March/April reviews that reported no DTS support. USB playback includes MP3, AAC, OGG, FLAC and WAV	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	Room Calibration Pro via the bar, remote or LG ThinQ; Sound Follow tracks a compatible smartphone's position. Dolby Atmos FlexConnect expansion and Sound Follow require a compatible connected speaker arrangement; LG specifies at least two M5 or one M7 for Sound Follow	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	Google Assistant	Alexa and Sonos Voice Control
Wi-Fi
Wi-Fi	Dual-band Wi-Fi; current US manual specifies IEEE 802.11a/b/g/n/ac/ax	Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 GHz and 5 GHz
Bluetooth
Bluetooth	Bluetooth 5.4; SBC and AAC codecs listed in LG's US specification	Bluetooth 5.3
Ports
Ports	One HDMI connection to the TV with eARC/ARC and SIMPLINK CEC; no HDMI input or video passthrough. USB-A for USB storage playback; mains power inlet; no optical input (What Hi-Fi)	HDMI eARC; optical through an adapter sold separately
Streaming
Streaming	AirPlay 2, Spotify Connect, Tidal Connect, LG Radio+ and Google Cast; service availability varies by region and software. The US sheet says works with Google Assistant, meaning external ecosystem compatibility; no built-in voice assistant is claimed	Apple AirPlay 2
Multi-room
Multi-room	Optional Sound Suite M5/M7 speakers and W7 subwoofer connect wirelessly; expanded systems support Dolby Atmos FlexConnect with the H7 acting as the hub, including when used with a non-LG TV	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	LG ThinQ for iOS and Android; setup, speaker grouping, room tuning, equaliser and sound-mode adjustments. WOW Orchestra and TV sound controls require compatible LG televisions	Sonos app (iOS and Android); works with the TV remote
Design
Weight
Weight	7.7 kg	5.9 kg (better)
Controls
Controls	On-bar buttons, remote control, MY shortcut button, OLED status display and adjustable lighting; standard, bass boost, AI processing and custom equaliser modes	Capacitive touch controls (play, pause, skip, replay, volume, voice mute, grouping); Bluetooth button; microphone switch
Microphones
Microphones	Built-in calibration microphone with a rear hardware switch; the current manual describes audio calibration rather than voice collection. What Hi-Fi found no onboard voice assistant; Google Assistant compatibility in the US sheet does not establish a built-in listening assistant	Far-field microphone array with beamforming and multichannel echo cancellation; switch cuts power to the microphones
Mounting
Mounting	Tabletop or wall mounting with included brackets	M5 × 0.8 mm thread, 6.5 mm deep; Arc Ultra Wall Mount sold separately
Size
Size	1200 × 63 × 143 mm (W × H × D, including the base); 7.7 kg soundbar net weight, excluding packaging	75 × 1,178 × 110.6 mm (H × W × D)
Colours
Colours	Black	Black, White
In the box
In the box	H7 soundbar, remote control, HDMI cable, wall-mount brackets, power cord and warranty documentation; regional documentation and accessories may vary	Arc Ultra, power cable (2 m), HDMI cable (1.5 m), documentation