Here’s a detailed comparison of the differences between the Arc Ultra, Sub G4, and their predecessors, the Arc and Sub G3:

**Design**
– **Arc Ultra**: This sleek soundbar boasts a curved design with a matte finish, offering a slimmer profile while maintaining an impressive length of 117.8 cm—an increase from the previous model’s 114.1 cm. Standing just 7.5 cm tall, it takes up 17% less space than the original Arc, ensuring it blends seamlessly without obstructing your TV frame.

– **Arc**: A timeless classic, the Arc features a simple yet elegant cylindrical shape adorned with a 260-degree seamless curve grille. Measuring 114 cm in length, its design remains as striking as ever.
– **Sub G4**: Building on the legacy of the Sub G3, this subwoofer introduces a fresh matte finish that complements its versatile placement options.

Whether upright, on its side, or discreetly tucked under furniture, the Sub G4 offers unmatched flexibility.
– **Sub G3**: With its piano lacquer finish, the Sub G3 exudes a polished, traditional aesthetic. While it lacks some of the Sub G4’s modern innovations, it still delivers reliable performance with more fixed placement options.

**Sound**
– **Arc Ultra**: Packing a punch with 14 drivers—including waveguide tweeters, upward-firing reflective units, and a centrally located subwoofer—the Arc Ultra leverages Sound Motion technology to deliver twice the low-frequency output of the Arc. Capable of creating a stunning 9.1.4 Dolby Atmos experience, it also enhances voice clarity for an immersive auditory journey.

– **Arc**: Equipped with 11 high-performance speaker units (8 mid-bass drivers and 3 tweeters), the Arc supports 7.1.4 Dolby Atmos technology, delivering rich, dynamic soundscapes that elevate any viewing experience.
– **Sub G4**: Featuring dual-force cancellation technology, the Sub G4 reduces distortion while enhancing bass response.

Its upgraded processing power, memory, and Wi-Fi radio ensure smoother connectivity, making it a powerhouse for home theater systems.
– **Sub G3**: Though slightly less advanced in overall audio technology compared to the Sub G4, the Sub G3 still provides robust bass effects, enriching the sonic atmosphere of any home theater setup.

**Functionality**
– **Arc Ultra**: As Sonos’ first Bluetooth-enabled soundbar, the Arc Ultra opens new possibilities for wireless audio playback. With HDMI eARC, LAN, and WiFi connectivity options, it effortlessly integrates into your network. Stream music wirelessly via the Sonos app or Apple AirPlay 2 for a seamless entertainment experience.

– **Arc**: Harnessing Sonos Trueplay tuning technology, the Arc optimizes sound based on your room’s acoustics. Connected to your TV via HDMI eARC, it allows wireless pairing and voice control through smart assistants like Alexa or Google Assistant, all managed via the intuitive Sonos app.
– **Sub G4**: Boasting an upgraded Wi-Fi chip, the Sub G4 ensures faster, more stable wireless connections.
Pair it with speakers like the Arc Ultra or Beam to create a state-of-the-art home theater system.
– **Sub G3**: Connecting wirelessly via Wi-Fi, the Sub G3 can be paired with products like the Arc to form a cohesive sound system. However, it may fall short in terms of connection speed and stability when compared to the Sub G4.