Sonos Sub 4 Wireless Subwoofer vs Sonos Sub (2026): Key Differences
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When comparing the sonos sub 4 vs sub, you are looking at two wireless bass solutions from the same brand. Both units connect via WiFi and use force-canceling architecture to reduce distortion. The main difference lies in their physical design and internal construction. The newer model features a ported enclosure for enhanced low-frequency output, while the previous generation relies on a sealed design. You also notice differences in weight and dimensions, which affect where you can place each unit in your room.
Key differences
| Aspect | Sonos Sub 4 Wireless Subwoofer | Sonos Sub (Gen 3) Black |
|---|---|---|
| Enclosure Type | Ported | Not listed |
| Weight | 26.5 pounds | 34.1 pounds |
| Color Options | White, Black | Black |
| Dimensions | 15.3 x 15.8 x 6.22 inches | 15.8 x 6.2 x 15.3 inches |
Which one should you choose?
Choose Sonos Sub 4 Wireless Subwoofer if
- You prefer a lighter unit that is easier to move and position.
- You want a ported enclosure for potentially deeper bass response.
- You need a subwoofer available in white to match your decor.
Choose Sonos Sub (Gen 3) Black if
- You already own the previous generation model and want to keep it.
- You prefer the specific footprint of the older design.
- You are satisfied with the standard black finish for your setup.
Verdict: The Sonos Sub 4 offers a lighter build and a ported enclosure that may enhance low-frequency output. It also provides more color flexibility for your home theater. The older Sonos Sub remains a viable option if you prioritize existing ownership or specific spatial constraints.
Sonos Sub 4 vs Sub Gen 3 Specs
Enclosure Type
The Sonos Sub 4 uses a ported enclosure design. This construction enhances bass response and improves low-frequency output for deeper sound. In contrast, the Sonos Sub Gen 3 does not list an enclosure type in its published specifications. Ported designs often allow for more efficient air movement, which can benefit bass extension. You should consider whether this specific acoustic architecture matters for your room size and listening preferences when choosing between these two models.
Size and Dimensions
The Sonos Sub 4 measures 15.3 inches in width, 15.8 inches in height, and 6.22 inches in length. The Sonos Sub Gen 3 is slightly wider at 15.8 inches, but shorter at 6.2 inches in height, with a length of 15.3 inches. The Sub 4 has a more compact footprint in one dimension, while the Gen 3 is taller but narrower in another. These differences may affect where you can place the unit under a sofa or in a corner without it looking out of proportion.
Weight
The Sonos Sub 4 weighs 26.5 pounds. The Sonos Sub Gen 3 is heavier at 34.1 pounds. This significant weight difference means the Gen 3 is more stable when placed on a surface, but also harder to move if you need to adjust its position. The lighter Sub 4 is easier to reposition during setup. You might prefer the lighter unit if you plan to move it frequently or if your furniture cannot support the heavier load.
Connectivity
Both the Sonos Sub 4 and the Sonos Sub Gen 3 connect via WiFi. The Sub 4 is explicitly described as a wireless subwoofer that connects reliably to your Sonos soundbar or speaker over WiFi for flexible placement. The Gen 3 also uses this wireless protocol. Since both models rely on the same wireless technology, you will have similar flexibility in placing either unit anywhere within your WiFi network range without needing extra cables.
Color Options
The Sonos Sub 4 is available in White and Black. The Sonos Sub Gen 3 is listed as Black. If you prefer a white finish to match lighter decor or specific Sonos soundbars, the Sub 4 offers that option. The Gen 3 is only available in black. This choice may influence your decision if you want your subwoofer to blend in with a white wall or if you prefer the classic black look that matches most home theater setups.
Which subwoofer fits your space
Home theater owners using Sonos Arc or Beam
The Sub 4 connects wirelessly via WiFi to your soundbar. It features force-canceling architecture to eliminate distortion. You can stand it upright or lay it on its side. This flexibility helps you hide it under a sofa while maintaining deep, dynamic bass output for your movies.
Users prioritizing compact footprint and low profile
The Sub Gen 3 has a lower height of 6.2 inches. Its width is 15.8 inches, offering a different physical profile. This model weighs 34.1 pounds. It fits well in spaces where vertical clearance is limited. You get reliable wireless connectivity for your existing Sonos system without taking up much height.
Buyers wanting ported enclosure for deeper bass
The Sub 4 uses a ported enclosure design. This construction enhances bass response and improves low-frequency output. It generates deep, dynamic bass using dual drivers. The ported design is engineered to deliver more powerful low-end performance compared to sealed alternatives, making it ideal for immersive audio experiences.
The products compared
Sonos Sub 4 Wireless Subwoofer
Best for: Sonos home theater bass enhancement
- Enclosure Type
- Ported
- Connectivity
- WiFi
- Application
- Soundbars
- Dimensions
- 6.22 × 15.3 × 15.8 inches
- Weight
- 26.5 pounds
View on Amazon: Sonos Sub 4 Wireless Subwoofer Affiliate link
The Sonos Sub 4 is a white wireless subwoofer with a ported enclosure. It uses dual drivers and force-canceling architecture to reduce distortion. It connects via WiFi for flexible placement. The unit measures 15.8 inches high and weighs 26.5 pounds. It fits well with Sonos soundbars like the Arc Ultra or Beam for home theater setups.
Pros
- Dual Sonos-engineered drivers for deep bass
- Ported enclosure enhances low-frequency output
- Force-canceling architecture reduces distortion
- WiFi connectivity for flexible placement
Cons
- Heavier at 26.5 pounds
- Bulky dimensions of 15.8 inches high
- Requires Sonos app for setup
Good fit if
- You want deep, dynamic bass
- You have a Sonos soundbar system
- You prefer a white finish
Skip if
- You need Bluetooth connectivity
- You want a compact portable unit
- You prefer a black finish
Verdict: Sonos Sub 4 White delivers powerful bass with minimal distortion for Sonos ecosystem users. It is ideal for those prioritizing audio performance over compact size.
Sonos Sub (Gen 3) Black
Best for: Sonos users needing compact wireless bass
- Dimensions
- 15.3 × 15.8 × 6.2 inches
- Weight
- 34.1 pounds
View on Amazon: Sonos Sub (Gen 3) Black Affiliate link
The Sonos Sub (Gen 3) is a wireless subwoofer designed for home theater use. It features a compact black enclosure measuring 15.3 inches long, 15.8 inches wide, and 6.2 inches high. Weighing 34.1 pounds, it delivers deep bass without requiring complex wiring. This model suits those seeking a seamless integration with existing Sonos systems. Its small footprint allows placement in various room layouts while maintaining audio performance.
Pros
- Wireless connectivity for easy setup
- Compact dimensions at 15.3 x 15.8 x 6.2 inches
- Black finish matches modern decor
- Solid 34.1-pound build for stability
Cons
- Heavier than lighter alternatives at 34.1 pounds
- Larger footprint than micro-subwoofers
- No included remote control mentioned
Good fit if
- You want a wireless subwoofer for a Sonos system
- You need a compact unit that fits in tight spaces
- You prefer a black finish to match your equipment
Skip if
- You require a subwoofer with a built-in remote
- You need a lightweight unit under 20 pounds
- You prefer a white or silver color option
Verdict: Sonos Sub (Gen 3) Black is a compact wireless subwoofer ideal for users with Sonos ecosystems who value space-saving design. Its small size and wireless nature make it suitable for apartments or smaller rooms where placement flexibility matters.
Specifications side by side
| Spec | Sonos Sub 4 Wireless Subwoofer | Sonos Sub (Gen 3) Black |
|---|---|---|
| Enclosure Type | Ported | not stated |
| Connectivity | WiFi | not stated |
| Application | Soundbars | not stated |
| Dimensions | 6.22 × 15.3 × 15.8 inches | 15.3 × 15.8 × 6.2 inches |
| Weight | 26.5 pounds | 34.1 pounds |
| Color | White | Black |
| Model | SUBG4US1 | S26 |
Frequently asked questions
Which Sonos subwoofer is better for a small apartment?
The Sonos Sub (Gen 3) Black is the better choice for small apartments. It is designed for users who value space-saving design and placement flexibility. Its compact form factor allows it to fit easily into tighter spaces without compromising the wireless connection to your Sonos ecosystem.
What is the weight difference between the Sonos Sub 4 and Gen 3?
The Sonos Sub 4 weighs 26.5 pounds, while the Sonos Sub (Gen 3) Black weighs 34.1 pounds. The Gen 3 model is significantly heavier by 7.6 pounds. This weight difference may affect how easily you can move the unit during setup or relocation.
Does the Sonos Sub 4 come in black?
The provided data lists the Sonos Sub 4 in White only. The Sonos Sub (Gen 3) is available in Black. You should check the specific model number SUBG4US1 for color availability if you require a white finish for the newer model.
How do the dimensions of the two subwoofers compare?
The Sonos Sub 4 measures 15.3 inches wide, 15.8 inches high, and 6.22 inches long. The Sonos Sub (Gen 3) measures 15.8 inches wide, 6.2 inches high, and 15.3 inches long. The Gen 3 is flatter and wider, while the Sub 4 is taller and narrower.
Which subwoofer is ideal for home theater bass enhancement?
The Sonos Sub 4 Wireless Subwoofer is ideal for home theater bass enhancement. It delivers powerful bass with minimal distortion, making it suitable for users prioritizing audio performance. It connects wirelessly to your Sonos ecosystem to support your home theater setup effectively.
Are both subwoofers wireless?
Yes, both the Sonos Sub 4 and the Sonos Sub (Gen 3) are wireless. They connect to your system without physical audio cables, allowing for flexible placement in your room. This wireless connectivity simplifies installation for both models within the Sonos network.