Sonos Sub 4 vs Sonos Arc Ultra – Specs, Price & Comparison (2026)

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Brand	Sonos	Sonos
Model No	Sub 4	Arc Ultra
Wired / Wireless	Wifi Speaker	Wifi Speaker
Driver Type	Dynamic	Dynamic

Driver Diameter	127 mm X 203.2 mm Woofer, Dual Class-D Digital Amplifiers	2 Woofer, 7 Tweeter, 6 Mid Woofer, Fifteen Class-D Digital Amplifiers
Impedance	4 X 8-Ohms	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	125 W ( RMS )	110 W ( RMS ) Surround Sound Channel Configuration : 2.1
Signal to Noise Ratio	NA	NA

Noise Cancelling	NA	NA
Aux Connectivity	No	Yes
Weight	11.79 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 4 Premium Wi-Fi 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	Simply plug in the power cable and open the Sonos app to quickly add Sub 4 to your system. Sub 4 unlocks the full power of Sonos sound to immerse you deeper in every scene and song. The acoustic architecture creates a force-cancelling effect that virtually eliminates distortion. Pair Sub 4 with Sonos Arc Ultra, Arc, or Beam for dramatically richer bass, clearer highs and deeper immersion in all your entertainment. Featuring updated internal electronics, including a faster processor, more memory, and a new WiFi 6 Radioâ€”the Sub 4 is our most sophisticated Sub yet. Sub 4 takes over the lowest frequencies so your paired soundbar or speakers can deliver high and mid frequencies with even greater clarity and precision. Dual Sonos-engineered drivers generate deep, dynamic low end. The ported enclosure enhances the bass response and low-frequency output so you feel every beat, roar, and rumble in your chest.	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 4 with: JBL BAR 1000 Sonos Arc Premium Smart Soundbar JBL Spinner & Authentics 500 Sonos Sub Gen 3 Sony SA-RS8	Compare Sonos Arc Ultra with: Sonos Arc Premium Smart Soundbar Sonos Sub Gen 3 JBL BAR 1000 Sony SA-RS8 JBL Spinner & Authentics 500

Both models offer multiple connectivity options for seamless integration with TVs and other devices. These speakers are ideal for creating a home theatre-like environment with immersive sound output. Audio enhancements and surround technologies improve clarity and spatial sound performance. Key differences lie in output power, channel setup, and feature support, which influence performance. If you're comparing Sonos Arc Ultra and Sonos Sub 4, both systems are built to enhance your home entertainment experience with strong audio output and advanced features.

Verdict: Both speakers offer strong performance, and the better choice depends on your preference for power, surround sound, and features.

Top Differences

Sound Output: 110W vs 125W
Channels: 110 vs 125
Dolby Atmos: Yes vs No
Bluetooth: yes vs no
Bluetooth Version: ( 5.3 ) vs NA

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