Description
🎧 Audio Architecture
•Supports 9.1.4‑channel Dolby Atmos spatial audio—nine ear‑level channels, four height channels, and integrated subwoofer (no extra speakers required). 
•Built with 14 Sonos‑engineered drivers:
•7 silk‑dome tweeters (including two up‑firing for height effects)
•6 mid‑range drivers
•A proprietary Sound Motion™ woofer: flat, dual‑membrane design powered by four motors, delivering deep and precise bass  
•15 Class‑D digital amplifiers, finely tuned to driver layout 
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🛠 Technology & Features
•Sound Motion™ Technology: Enables powerful bass in a sleek enclosure and frees space for additional drivers for a wider soundstage 
•Speech Enhancement: AI‑driven voice clarity and customizable dialogue levels 
•Trueplay Tuning: Room acoustic calibration through the Sonos app to optimize sound quality 
•Night Sound mode: Reduces loud effects for quieter listening 
•TV Audio Swap: Seamlessly switch TV audio output between the Arc Ultra and one or two Sonos Ace headphones 
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🔌 Connectivity & Compatibility
•HDMI eARC / ARC input (single port included, optical-to-HDMI adapter also included in the box for older TVs) 
•Compatible with Wi‑Fi 6 (2.4 GHz/5 GHz) and Bluetooth 5.3 for audio streaming 
•Works with Apple AirPlay 2, Spotify Connect, and supports voice control via Sonos Voice Control and Amazon Alexa (region-dependent) 
•Group audio across other Sonos rooms in your home 
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📦 Physical Specs & Controls
•Dimensions (W×H×D): 46.38 × 2.95 × 4.35 in (1,178 × 75 × 110.6 mm) 
•Weight: ~13 lb (5.9 kg) 
•Finish and Colors: Matte Black or White
•Mountable via included M5 × 0.8 mm threaded holes (L6.5 mm screws), compatible with Sonos Arc wall mount accessory 
On‑unit controls:
•Capacitive touch panel (play, pause, skip, replay, volume, mic off, grouping)
•Bluetooth pairing button
•Physical mic‑off toggle switch to disconnect far‑field microphones
•LEDs for connectivity, mic status, and errors  
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🧠 Internal Hardware
•CPU: Quad‑Core ARM Cortex‑A55 @ 1.9 GHz
•Memory: 2 GB SDRAM, 8 GB internal flash storage
(high spec for a soundbar—enough for Sonos OS, tuning data, and future features) 
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📦 What’s in the Box
•Sonos Arc Ultra soundbar
•Power cable (approx. 6 ft / 2 m)
•HDMI cable (eARC/ARC, approx. 4.9 ft / 1.5 m)
•Quick‑start guide and warranty documentation
•Optical‑to‑HDMI adapter (for older TVs)   
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