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Sennheiser AMBEO Soundbar Plus vs Sonos Beam Ultra

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

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SennheiserAMBEO Soundbar PlusSonosBeam Ultra
Overview
Released2022September 2026
Sound
TypeSoundbarSoundbar
Channels7.1.4 (virtual)7.1.2
Dolby AtmosYesYes
DriversNine drivers, with two 100 mm cellulose woofers and seven 50 mm aluminium full-range drivers; 7.1.4 is the virtualised presentation, rather than a set of discrete rear speakersFive tweeters (one forward-firing centre, two side-firing horn-loaded and two upward-firing directional horn tweeters); four low-profile woofers
AmplifiersNine Class D amplifiers, total 400 W RMSNine Class-D digital amplifiers
Frequency response38 Hz–20 kHz (-3 dB)–
Audio formatsDolby Atmos, Dolby Digital Plus, Dolby TrueHD, DTS:X, DTS-HD Master Audio, multichannel LPCM, MPEG-H and Sony 360 Reality AudioStereo PCM, Dolby Digital, Dolby Digital Plus and Atmos over Dolby Digital Plus; Dolby TrueHD, Atmos over TrueHD and multichannel PCM require eARC. Maker lists DTS Digital Surround with a note that this does not indicate a licensed decoder; no DTS:X (What Hi-Fi and TechRadar)
Room tuningAMBEO self-calibration with four built-in microphones; stereo upmixing, adjustable presets and equaliser, Voice Enhancement and Night ModeTrueplay room calibration compatible with iOS and Android; four levels of AI Speech Enhancement, Night Sound, adjustable bass/treble/loudness and simulated overhead sound for obstructed top placement
Connections
Wi-FiYesYes
BluetoothYesYes
AirPlayYesYes
HDMI eARCYesYes
Voice assistantsAlexaSonos Voice Control
Wi-FiWi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 and 5 GHz, 2 × 2 MIMOWi-Fi 6; 802.11a/b/g/n/ac/ax on 2.4 or 5 GHz
BluetoothBluetooth 5.0 Classic/BLE with SBC and AAC audio; LC3 is used for the separate AMBEO Sub connection, not general Bluetooth musicBluetooth 5.3 audio streaming
PortsTwo HDMI 2.0a inputs with 4K 60 Hz and Dolby Vision passthrough; HDMI 2.1 eARC output, optical, stereo RCA input, Ethernet, mono RCA subwoofer output and USB-A for accessory power/serviceHDMI eARC/ARC; USB-C supports line-in with Sonos Line-In Adapter or line-in and Ethernet with Sonos Combo Adapter; adapters sold separately. Optical adapter sold separately
StreamingAirPlay 2, Chromecast built-in, Spotify Connect, Tidal Connect with Dolby Atmos and UPnPSonos app services, Spotify and TIDAL direct control, AirPlay 2, Bluetooth and Dolby Atmos Music
Multi-roomSupports up to four separately sold wireless AMBEO Sub units; additional rear speakers are not includedSonos multi-room playback; optional compatible subwoofer and rear surrounds, including pairs of Sonos Play or Move 2; TV Audio Swap to compatible Sonos headphones
AppSennheiser Smart Control and browser interface for setup, codec display and sound controlsSonos app; Wi-Fi internet connection and mains power required
Design
Weight6.3 kg2.88 kg
ControlsIncluded infrared remote, app, browser and soundbar controlsCapacitive playback, volume, voice and grouping controls; Bluetooth pairing button; physical microphone-power switch; compatible TV remote control
MicrophonesFour far-field microphones for room calibration and voice features; Alexa built in where supported, Google Assistant via an external compatible device and Siri through Apple HomeKit; microphone can be switched offFar-field array with beamforming and multichannel echo cancellation for voice control, Trueplay and portable-surround setup
Mounting–Furniture placement or optional Beam Ultra Wall Mount; maker lists M5 × 0.8 mm thread pitch, L6.5 mm
SizeApproximately 105.1 × 7.7 × 12.1 cm with feet, or 105.1 × 7.5 × 12.1 cm without feet (width × height × depth)65 mm high, 750 mm wide, 105 mm deep
ColoursBlackBlack, White
In the boxSoundbar, remote with lithium battery, HDMI cable, power cord and guides; external subwoofer sold separatelyBeam Ultra, 2 m power cable, 1.5 m HDMI cable, setup and warranty documentation

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