Marshall Heston 120 vs Sonos Arc Ultra

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Heston 120 compared with Arc Ultra

	MarshallHeston 120	SonosArc Ultra
Overview
Released
Released	2025	October 2024
Sound
Type
Type	Soundbar	Soundbar
Channels
Channels	5.1.2	9.1.4
Dolby Atmos
Dolby Atmos	Yes	Yes
Drivers
Drivers	Two 2 × 5-inch bass drivers, two 3-inch mid-woofers, two 0.8-inch tweeters and five 2-inch full-range drivers; four passive radiators	Nine silk-dome tweeters (two firing upwards), six midwoofers and a Sound Motion woofer (four motors, dual membrane)
Amplifiers
Amplifiers	Eleven Class D amplifiers, listed as 2 × 50 W and 9 × 30 W; separately stated total output 150 W peak. These are different maker ratings, not an additive system power claim.	Fifteen class-D digital amplifiers
Frequency response
Frequency response	40 Hz–20 kHz; maximum SPL 95 dB	–
Audio formats
Audio formats	Dolby Atmos and DTS:X	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	Automatic calibration; Movie, Music, Night and Voice modes	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	None	Alexa and Sonos Voice Control
Wi-Fi
Wi-Fi	Wi-Fi 6	Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 GHz and 5 GHz
Bluetooth
Bluetooth	Bluetooth 5.3, SBC, AAC and LC3; Auracast supported	Bluetooth 5.3
Ports
Ports	HDMI eARC, HDMI input with maker-stated 4K 120 Hz and Dolby Vision passthrough, stereo RCA input, mono RCA subwoofer output, USB-C and Ethernet; no optical input despite an erroneous Expert Reviews connection list	HDMI eARC; optical through an adapter sold separately
Streaming
Streaming	AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect and airable radio	Apple AirPlay 2
Multi-room
Multi-room	Optional Heston Sub 200 sold separately; AirPlay grouping through Apple Home	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	Marshall app	Sonos app (iOS and Android); works with the TV remote
Design
Weight
Weight	7.04 kg	5.9 kg (better)
Controls
Controls	Rotary controls and preset buttons; TV remote through HDMI CEC. No separate remote supplied.	Capacitive touch controls (play, pause, skip, replay, volume, voice mute, grouping); Bluetooth button; microphone switch
Microphones
Microphones	Two calibration microphones; no built-in voice assistant	Far-field microphone array with beamforming and multichannel echo cancellation; switch cuts power to the microphones
Mounting
Mounting	Optional Heston 120 wall mount	M5 × 0.8 mm thread, 6.5 mm deep; Arc Ultra Wall Mount sold separately
Size
Size	1100 × 76 × 145 mm (width × height × depth)	75 × 1,178 × 110.6 mm (H × W × D)
Colours
Colours	Black	Black, White
In the box
In the box	Soundbar, mains lead, HDMI cable and guides	Arc Ultra, power cable (2 m), HDMI cable (1.5 m), documentation