If you want true cinema-grade sound at home without wiring a single rear speaker or wrestling with an AV receiver, the Sonos Premium Entertainment Set — Arc Ultra and Sub 4 is the most complete wireless home theatre system available in India right now. It pairs Sonos's flagship soundbar with the brand-new Sonos Sub 4, and the result is a system that feels less like a soundbar upgrade and more like a full cinema install — minus the complexity.
At 8mm, we've set this system up in living rooms across Raipur and beyond, and it's fast become one of our most recommended premium bundles for movie lovers, sports fans, gamers, and anyone chasing a genuinely immersive Dolby Atmos experience without an AV receiver.
Why the Sonos Arc Ultra + Sub 4 Is the Best Home Theatre System in India Right Now
The Sonos Arc Ultra soundbar sets a new benchmark for premium wireless soundbars, and pairing it with the Sonos Sub 4 unlocks a genuinely cinematic experience at home — explosive bass, a spacious Atmos field, sharp dialogue clarity, and setup that takes minutes, not hours.
Premium 3D Sound With Dolby Atmos
The Sonos Arc Ultra uses eleven high-performance drivers that fire sound upward, forward, and sideways to build a genuinely spacious Atmos field. Movies feel dramatic, games feel lifelike, and music fills the room without ever sounding artificial.
With HDMI eARC support, you get full-resolution Dolby Atmos on both 4K and 8K TVs — no compression, no compromise.
What you actually hear:
•    Clear, upfront dialogue even in loud action scenes
•    Crisp, precise sound effects
•    Realistic overhead Atmos layers
•    Immersive surround sound — without any rear speakers
Sonos Sub 4 — Deep, Clean, and Thunderous Bass
The Sonos Sub 4 is the latest-generation subwoofer from Sonos, built with a redesigned architecture for even deeper, cleaner bass response — ideal for action movies, sports, and gaming.
Highlights:
•    Dual force-cancelling woofers for zero cabinet vibration
•    Extremely low distortion, even at high volume
•    Powerful enough to fill large living rooms
Paired with the Arc Ultra, the Sub 4 takes over every low frequency, freeing the soundbar to focus purely on mids and highs. The result is clearer vocals, richer detail, and a far more dynamic home cinema experience — one of the reasons this Arc Ultra and Sub 4 bundle consistently outperforms standalone soundbars in this price range.
The Fastest, Easiest Setup in the Premium Category
The Sonos ecosystem is built for effortless setup. There's no AV receiver, no complicated calibration, and no messy wiring to plan around.
All you need:
•    A power cable
•    One HDMI eARC connection to your TV
•    The Sonos App
The system connects instantly to your home Wi-Fi — ideal if you want premium, cinema-grade performance without the technical hassle of a traditional home theatre install.
Sonos App and Smart Features
The Sonos App unlocks a genuinely useful set of smart features:
•    Trueplay tuning for room-specific acoustic optimisation
•    Automatic software updates
•    Multi-room playback with other Sonos speakers
•    Voice control via Sonos Voice Control
•    Apple AirPlay 2 support
•    Spotify Connect, TIDAL, Apple Music, YouTube Music, and more
It's one of the most stable, future-proof wireless sound ecosystems available today, and it keeps improving through regular software updates.
Built for Large Rooms and Premium Living Spaces
The Sonos Arc Ultra + Sub 4 is engineered for big Indian living rooms. Whether you're running a 55-inch, 65-inch, 75-inch, or even an 85-inch TV, this system delivers sound that matches the scale of your screen.
Ideal for:
•    Home cinema setups
•    Gaming on PS5 and Xbox Series X
•    Sports viewing
•    High-fidelity music streaming
Technical Specifications
Sonos Arc Ultra:
•    Eleven high-performance drivers
•    Dolby Atmos 3D sound
•    HDMI eARC
•    Voice control
•    Wi-Fi 6
•    Apple AirPlay 2
•    Trueplay calibration
Sonos Sub 4:
•    Dual force-cancelling woofers
•    Deep bass architecture
•    Wireless connectivity, Wi-Fi 6
•    Vibration-free cabinet design
•    Premium matte finish
Why Buy the Sonos Premium Entertainment Set From 8mm
When you buy the Sonos Arc Ultra + Sub 4 Premium Entertainment Set from 8mm, you get:
•    100% genuine Sonos India product with an official 2-year manufacturer warranty
•    Fast shipping across India
•    Expert guidance for room setup and placement
•    EMI and no-cost EMI options, plus COD availability
•    Exclusive bundle pricing and offers
•    Price-match policy if you find it cheaper elsewhere
Who Should Buy This Bundle
Choose this system if you want:
•    The most premium wireless home cinema soundbar in India
•    Deep, powerful subwoofer performance
•    Zero-hassle installation
•    Dolby Atmos without rear speakers
•    Premium design that suits luxury interiors
•    Future-proof Wi-Fi 6 technology
8mm's Expert Verdict
The Sonos Arc Ultra + Sub 4 isn't just a soundbar-and-subwoofer pairing — it's a complete premium home theatre experience for people who want the best without dealing with receivers, wiring, or complexity.
This system stands out because of:
•    Unmatched ease of use
•    Stunning, modern design
•    Immersive, realistic Dolby Atmos performance
•    Tight, controlled bass
•    Reliable wireless performance
•    Continuous improvement through Sonos App updates
For large rooms and premium living spaces, this is one of the best wireless Dolby Atmos systems you can buy today.
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Ready to Upgrade Your Home Theatre?
Visit the Sonos Arc Ultra + Sub 4 Premium Entertainment Set product page to check the latest price and EMI options, or experience it in person at our experience centre — 8mm, Beside Arogya Hospital, Shankar Nagar, Raipur, Chhattisgarh – 492001. Our audio specialists will help you choose the right setup for your room and budget.
Have questions or want a custom quote? WhatsApp us at +91 74407 90337 — our team responds fast with genuine pricing, EMI plans, and setup guidance.
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Frequently Asked Questions
1. Is the Sonos Arc Ultra worth buying in India?
Yes. It's the most advanced wireless Dolby Atmos soundbar available today and delivers cinema-grade audio, especially when paired with the Sub 4.
2. Can I add more speakers to this system later?
Yes. You can expand to a full surround setup by adding Sonos Era 300 or Era 100 speakers as rears.
3. Does the Sonos Arc Ultra support HDMI eARC?
Yes. HDMI eARC enables lossless, full-resolution Dolby Atmos audio from your TV.
4. Is the Sonos Sub 4 powerful enough for a large living room?
Absolutely. It's engineered for deep, distortion-free bass that fills large Indian living rooms with ease.
5. Does 8mm offer EMI and genuine warranty on the Sonos Arc Ultra + Sub 4?
Yes. 8mm offers EMI options, 100% genuine Sonos India stock, and full official 2-year manufacturer warranty on every order.
6. Can this system replace a traditional wired home theatre?
For most users, yes — it delivers premium, cinematic sound with far less complexity than a wired multi-speaker setup.
7. How long does delivery take, and is Cash on Delivery available?
8mm typically delivers within 2–5 days across India, with both COD and no-cost EMI available at checkout.
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Written by Yug Gupta | Audio Specialist at 8mm.in
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