Sonos Arc Ultra vs Sony SA-RS8 – Which One Should You Buy? (2026)

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Brand	Sonos	Sony
Model No	Arc Ultra	SA-RS8
Wired / Wireless	Wifi Speaker	Wifi Speaker
Driver Type	Dynamic	Dynamic

Driver Diameter	2 Woofer, 7 Tweeter, 6 Mid Woofer, Fifteen Class-D Digital Amplifiers	NA
Impedance	NA	NA
Sensitivity	NA	NA
Frequency Response	NA	20Hz - 20KHz
Maximum Power Input	AC100-240V 50/60Hz	AC 100~240V, 50/60Hz
Maximum Power Output	110 W ( RMS ) Surround Sound Channel Configuration : 2.1	100 W ( RMS ) Surround Sound Channel Configuration : 4 Channel
Signal to Noise Ratio	NA	NA

Noise Cancelling	NA	NA
Aux Connectivity	Yes	No
Weight	5.9 Kg	Weight : 1.1 Kg
Dimensions	Soundbar : 1178 mm X 110.6 mm X 75 mm	116 mm X 202 mm X 116 mm
Available Colors	Black, White	Black
Accessories	Sonos Arc Wi-Fi Ultra Premium Smart Soundbar HDMI Cable Power Cable Warranty Card Quick Setup Guide	Sony SA-RS8 Rear Speaker AC Cord Warranty Card Reference Guide
Other Features	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.	Harmonic Presence. Slips seamlessly in your space. Elegance meets function with the BRAVIA Theatre. Designed to blend naturally into your home, it offers a sophisticated, clutter-free look with hidden cables at the base. Aesthetic refinement all angles. A cinematic world of sound, right at home Expand your senses. With 360 Spatial Sound Mapping, compatible soundbars create phantom speakers that expand the audio beyond the room’s boundaries, making each moment feel bigger and more dynamic. Expand Your Sound : Explore compatible Sony devices Transform your home entertainment experience. Our soundbars deliver rich, room-filling audio that everyone will love. Add wireless rear speakers, and let the sound wrap around you from every angle, elevating every moment. Amp up your surround sound experience Beyond surround sound. These wireless rear speakers turn your soundbar into a powerhouse of fuller, richer audio. 360 Spatial Sound Mapping with compatible soundbars generates phantom speakers that follow every scene, enhancing your experience from every angle.
	Compare Sonos Arc Ultra with: Sonos Arc Premium Smart Soundbar Sonos Sub Gen 3 JBL BAR 1000 Sonos Sub 4 JBL Spinner & Authentics 500	Compare Sony SA-RS8 with: Sonos Sub Gen 3 Sonos Arc Premium Smart Soundbar JBL BAR 1000 Sonos Sub 4 JBL Spinner & Authentics 500

Key Differences

Key differences lie in output power, channel setup, and feature support, which influence performance. These speakers are ideal for creating a home theatre-like environment with immersive sound output. If you're comparing Sonos Arc Ultra and Sony SA-RS8, both systems are built to enhance your home entertainment experience with strong audio output and advanced features. Connectivity features such as Bluetooth and HDMI ensure compatibility with a wide range of devices. Support for technologies like Dolby Atmos and DTS enhances the depth and realism of sound.

Verdict: Both systems are competitive, and the right option depends on your room size, usage, and feature requirements.

Top Differences

Sound Output: 110W vs 100W
Channels: 110 vs 100
Dolby Atmos: Yes vs No
Bluetooth Version: ( 5.3 ) vs NA
Frequency Response: NA vs 20Hz - 20KHz

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Key Differences

Top Differences