Sonos Sub Gen 3 vs Sonos Arc Ultra – Detailed Sound Comparison (2026)

ALERT

Brand	Sonos	Sonos
Model No	Sub Gen 3	Arc Ultra
Wired / Wireless	Wifi Speaker	Wifi Speaker
Driver Type	Dynamic	Dynamic

Driver Diameter	25.4 mm Tweeter, 388.62 mm Subwoofer, Both Class-D Digital Amplifiers	2 Woofer, 7 Tweeter, 6 Mid Woofer, Fifteen Class-D Digital Amplifiers
Impedance	NA	NA
Sensitivity	NA	NA
Frequency Response	As Low As 25Hz	NA
Maximum Power Input	AC100-240V 50/60Hz	AC100-240V 50/60Hz
Maximum Power Output	245 W ( RMS ) Surround Sound Channel Configuration : â€Ž2.1	110 W ( RMS ) Surround Sound Channel Configuration : 2.1
Signal to Noise Ratio	NA	NA

Noise Cancelling	NA	NA
Aux Connectivity	No	Yes
Weight	13.15 Kg	5.9 Kg
Dimensions	Subwoofer : 402 mm X 389 mm X 158 mm	Soundbar : 1178 mm X 110.6 mm X 75 mm
Available Colors	Black, White	Black, White
Accessories	Sonos Sub Gen 3 Wi-Fi Premium Wireless Subwoofer Power Cable Warranty Card Quick Setup Guide	Sonos Arc Wi-Fi Ultra Premium Smart Soundbar HDMI Cable Power Cable Warranty Card Quick Setup Guide
Other Features	ll-new Sonos Sub - Hear and feel the difference with Sub, the wireless subwoofer for deep bass. No buzz, just bass - 2 force-canceling drivers at the center of Sub eliminate vibration and rattle so you get powerful bass without any distortion. Made to be seen and heard - The award-winning and versatile design features a slim, sculptural shape and high-gloss finish. Stand Sub upright or lay it on its side. Lower lows and higher highs - Sub takes over the lowest frequencies, enhancing the midrange playback from paired speakers so you experience fuller, more detailed sound.	Tuned to perfection - Enhanced Trueplay tuning technology optimizes the sound for the unique acoustics of the room. 3D sound with Dolby Atmos - Experience shows, movies, and games with the precise and immersive sound of Dolby Atmos. Immerse yourself in the music - Stream music, radio, podcasts, and more from your favorite services with the Sonos app or Apple AirPlay 2 when the TV is off. All-new Sonos Arc Ultra- Bring all your entertainment to life with the brilliantly realistic sound of Arc Ultra, featuring Dolby Atmos. Enjoy control with your TV remote, voice, the Sonos app, Apple AirPlay 2, and more.
	Compare Sonos Sub Gen 3 with: Sony SA-RS8 Sonos Arc Premium Smart Soundbar JBL BAR 1000 Sonos Sub 4 JBL Spinner & Authentics 500	Compare Sonos Arc Ultra with: Sonos Arc Premium Smart Soundbar JBL BAR 1000 Sony SA-RS8 Sonos Sub 4 JBL Spinner & Authentics 500

Connectivity features such as Bluetooth and HDMI ensure compatibility with a wide range of devices. If you're comparing Sonos Sub Gen 3 and Sonos Arc Ultra, both systems are built to enhance your home entertainment experience with strong audio output and advanced features. Support for technologies like Dolby Atmos and DTS enhances the depth and realism of sound. These speakers are ideal for creating a home theatre-like environment with immersive sound output. Differences in power output, channel configuration, and audio technologies can impact overall sound performance.

Verdict: Choosing between Sonos Sub Gen 3 and Sonos Arc Ultra depends on your need for immersive sound and advanced audio technologies.

Top Differences

Sound Output: 245W vs 110W
Channels: 245 vs 110
Dolby Atmos: No vs Yes
Bluetooth: no vs yes
Bluetooth Version: NA vs ( 5.3 )

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Top Differences