Sonos Sub 3 vs 4 – Check Which One Is Best & Why?

Why Do I Recommend The Sonos Sub 4?

• The Sonos Sub 4 features a next-generation quad-core processor for faster audio signal processing and smoother wireless synchronization, whereas the Sonos Sub 3 uses an older dual-core processor.
• Sonos Sub 4 includes upgraded Class-D amplifiers for cleaner low-frequency reproduction at higher volumes, while the Sonos Sub 3 uses standard Class-D amps.
• It supports Wi-Fi 6 connectivity for improved range and lower latency in congested networks, while the Sonos Sub 3 supports only Wi-Fi 5.
• The Sonos Sub 4 comes with a re-engineered acoustic polymer shell to reduce internal resonance and vibration, whereas the Sonos Sub 3 uses a heavier MDF composite enclosure.
• Sonos Sub 4 features enhanced Bluetooth LE for quick setup and pairing convenience, while the Sonos Sub 3 lacks Bluetooth LE and requires full app-based network pairing.
• It includes dual-sub pairing support to expand bass performance across larger listening areas, whereas the Sonos Sub 3 supports only a single-sub configuration.
• The Sonos Sub 4 has expanded onboard memory and flash storage for advanced DSP features and firmware updates, while the Sonos Sub 3 contains limited memory that restricts processing upgrades.
• Sonos Sub 4 delivers a slightly deeper frequency response down to 25 Hz for more powerful sub-bass effects, whereas the Sonos Sub 3 extends only to about 27 Hz.

Maybe the Sonos Sub 3 can make you comfortable because it’s a little bit cheaper than the Sonos Sub 4. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

What Common Both Can Do?

• Dual Force-Cancelling Drivers: Both Sonos Sub 4 and Sub 3 use a dual driver configuration that eliminates vibrations by having each driver face inward. This design ensures that energy from the bass doesn’t shake or distort the subwoofer cabinet, resulting in clean, rumble-free low frequencies.
• Class-D Digital Amplifiers: Each model features Class-D amplifiers that efficiently power the subwoofers while maintaining minimal heat output. This efficiency allows for deep, powerful bass without energy waste or excess heat buildup.
• Wireless Connection: Both subwoofers connect wirelessly to other Sonos products, making setup simple and reducing cable clutter. This seamless wireless integration is especially useful for home theater and multi-room setups.
• Ethernet Port: Each subwoofer includes a wired Ethernet port for users who prefer a stable, low-latency connection over Wi-Fi. This option ensures reliability in areas with congested or weak wireless networks.
• Wi-Fi Bands: Both support dual-band Wi-Fi (2.4 GHz and 5 GHz), giving users flexibility depending on their router configuration. This ensures consistent audio streaming across different network environments.
• Frequency Range: Both subs cover roughly the same low-end spectrum, ensuring full, room-filling bass. This makes them equally capable for movies, music, and gaming applications.
• Sonos S2 App Support: Each integrates with the Sonos S2 app, allowing full control over sound settings, grouping, and system updates. The app provides an intuitive way to manage the entire Sonos ecosystem from a single interface.
• Trueplay Tuning: Both models work with Trueplay, Sonos’s room calibration technology that measures sound reflections and optimizes output for each unique space. This ensures accurate bass performance regardless of placement.
• Sealed Acoustic Enclosure: Each unit features a sealed design that enhances clarity by preventing air turbulence. This approach improves precision in bass delivery, maintaining tight control across frequencies.
• Placement Orientation: Both subs can be positioned vertically or horizontally, giving users flexibility to fit them under furniture or alongside other components. This adaptability makes them suitable for small and large rooms alike.
• Touch-Free Pairing via App: Both subwoofers pair through the Sonos app without manual controls or complex pairing sequences. The process is fast and reliable, allowing users to add the sub to their system in seconds.
• Power Input: Both models support universal power input (100–240 V AC 50/60 Hz), meaning they can be used globally without voltage concerns. This makes them convenient for international use or relocation.
• Automatic EQ Adjustment: Both automatically optimize their sound once paired with compatible Sonos speakers. This ensures balanced audio output without requiring manual adjustment.
• Wireless Pairing with Speakers: Each sub integrates seamlessly with Sonos soundbars and speakers wirelessly. This allows users to build an immersive surround sound experience without additional cabling.
• Multi-Room Sonos System Support: Both models can be grouped with multiple Sonos speakers for synchronized multi-room playback. This ensures consistent bass performance throughout an entire home system.
• Audio Synchronization: Both subs maintain precise timing across wireless connections, ensuring that bass aligns perfectly with other speakers. This creates a cohesive and immersive soundstage.
• Finish Options: Both come in black and white finishes to match other Sonos products and home décor. The minimalist design integrates easily into various interior styles.
• Operating Temperature: Both maintain safe operation between 0 °C and 40 °C, ensuring reliability even in warmer or cooler environments. This standard temperature range suits most household settings.
• Firmware Updates via App: Both receive over-the-air firmware updates directly through the Sonos app. This ensures continuous performance improvements and compatibility with new Sonos products.
• Low-Vibration Design: Each uses vibration-resistant engineering to prevent unwanted resonance and maintain sound clarity. This allows deep bass performance without introducing physical rattles or feedback in the room.