Sonos Premium Immersive Set with Arc Ultra Review
A refined and exceptionally easy-to-use wireless surround system with excellent dialogue and strong spatial integration.
At a Glance
Arc Ultra, Sub and Era surrounds form a polished wireless package with clear speech, convincing rear effects and unusually simple calibration for a premium system.
Sonos Premium Immersive Set with Arc Ultra Specifications
The Sonos Ultimate Immersive Set combines an Arc Ultra 9.1.4 Dolby Atmos soundbar, Sub 4 wireless subwoofer and two Era 300 surround speakers with Wi-Fi 6, Bluetooth 5.3, HDMI eARC and Apple AirPlay 2.
Core Specifications
| Type | Wireless Dolby Atmos soundbar surround system with soundbar, subwoofer and two rear speakers |
| Key Hardware | Arc Ultra soundbar with 14 drivers and Sound Motion technology; Sub 4 with dual Class-D amplifiers and dual 5 x 8 in inward-facing woofers; 2 x Era 300, each with six Class-D amplifiers, four tweeters and two woofers |
| Performance | Arc Ultra 9.1.4 Dolby Atmos playback; Sub 4 frequency response down to 25 Hz; Era 300 supports Dolby Atmos spatial audio |
Connectivity
| Wired | Arc Ultra: HDMI eARC/ARC; Era 300: USB-C for optional line-in or Ethernet adapter; Sub 4 uses wireless connection to the Sonos system |
| Wireless | Wi-Fi 6 on Arc Ultra, Sub 4 and Era 300; Bluetooth 5.3 on Arc Ultra and Era 300; Apple AirPlay 2 |
Power
| Power / Battery | Arc Ultra and Era 300: 100-240 V, 50/60 Hz internal power supplies; Sub 4 uses AC mains power |
Compatibility
| Platforms | Sonos app; HDMI eARC/ARC TVs; Sonos Voice Control; Amazon Alexa; Apple AirPlay 2; Trueplay room tuning |
Dimensions & Weight
| Dimensions | Arc Ultra: 46.38 x 2.95 x 4.35 in (1178 x 75 x 110.6 mm); Sub 4: 15.83 x 15.31 x 6.22 in (402 x 389 x 158 mm); each Era 300: 10.24 x 7.28 x 6.30 in (260 x 185 x 160 mm) |
| Weight | Arc Ultra: 13.0 lb (5.9 kg); Sub 4: 25.99 lb (11.79 kg); each Era 300: 9.85 lb (4.47 kg) |
In the Box
- Arc Ultra soundbar
- Arc Ultra power cable
- HDMI cable
- Sub 4
- Sub 4 power cable
- 2 x Era 300
- 2 x Era 300 power cables
- Documentation
Warranty & Support
| Warranty | 1-year limited warranty from the date of original purchase for defects in materials and workmanship. |
| Support | Sonos US support provides phone and live-chat assistance, a 24/7 Sonos Assistant, product help articles and community support. |
Summary
The set is a four-piece wireless home-theater package centered on a single HDMI eARC connection to the TV. Sub 4 handles low bass while the two Era 300 speakers add dedicated rear and height-channel output.
Should You Buy the Sonos Premium Immersive Set with Arc Ultra?
The Sonos Premium Immersive Set with Arc Ultra ranks #4 of 10 in our Best surround sound systems ranking, with a CORE score of 91/100. It is strongest on sound & dialogue and setup & calibration, where it ranks 1st of 10 on both.
Buy it if
- You prioritize polished operation, clear dialogue and a modular wireless multiroom ecosystem.
- You want strong sound & dialogue: it ranks 1st of 10 on this measure.
- You want strong setup & calibration: it ranks 1st of 10 on this measure.
Skip it if
- Room-filling dynamics is your top priority. The Nakamichi DRAGON 11.4.6 System scores 98 there, against 91 for the Sonos Premium Immersive Set with Arc Ultra.
How the Sonos Premium Immersive Set with Arc Ultra Scored
CORE scores every model in this category on the factors below, listed from most to least important for surround sound systems. The rank shows where the Sonos Premium Immersive Set with Arc Ultra places among the 10 models in our Best surround sound systems ranking.
Technical Assessment
Performance
Professional evidence supports excellent dialogue, balanced tonality and convincing spatial integration, particularly with Era 300 surrounds. Maximum-impact dynamics are a little less dominant than the most aggressive multi-speaker rivals, but overall coherence is excellent.
Value
Sonos Premium Immersive Set with Arc Ultra is compared on complete-system capability and ownership utility at its representative current US configuration price, not on price alone.
Pros and Cons
Pros
- Excellent dialogue clarity and tonal refinement
- Discrete Era 300 surrounds create strong rear and height immersion
- Simple automated tuning and polished daily operation
- Modular Sonos ecosystem is easy to expand
Cons
- Complete Arc Ultra immersive set is expensive for the performance delivered
- Only one HDMI connection limits direct source switching
- Best results depend on staying inside the Sonos ecosystem
Sonos Premium Immersive Set with Arc Ultra Alternatives
Nakamichi DRAGON 11.4.6 System
Choose it for stronger connectivity & formats: it scores 94 there, against 82 for the Sonos Premium Immersive Set with Arc Ultra.
JBL Bar 1300XMK2
Choose it for stronger connectivity & formats: it scores 90 there, against 82 for the Sonos Premium Immersive Set with Arc Ultra.
SVS Prime Satellite 5.1 System
Choose it for stronger value & total cost: it scores 94 there, against 76 for the Sonos Premium Immersive Set with Arc Ultra.
How We Evaluate
Last updated October 5, 2026.