
JBL LSR310S
Score: 82/100
Sonos Sub 4
Score: 86/100Rankings

The Sonos Sub 4 is a wireless subwoofer with dual inward-facing 5"×8" drivers delivering deep 25 Hz bass and automatic Trueplay tuning. Its Wi-Fi-only connectivity and substantial weight can limit flexibility for non-Sonos setups. Ideal for Sonos ecosystem owners seeking powerful bass in medium-to-large rooms.

The JBL LSR310S is a 10-inch powered studio subwoofer with a 200 W Class D amp, Slip Stream Port and multiple crossover options, delivering precise low-end for professional monitoring. Its down-firing design and lack of onboard EQ limit placement and fine-tuning flexibility. Best suited for studio engineers who need accurate bass and balanced inputs.
| Attribute | ![]() | ![]() |
|---|---|---|
200 Wbest | — | |
— | 25 Hzbest | |
9.84 inbest | 5 in | |
| ↓ lower better | 34.392 lb | 26.46 lbbest |
15 in | 15.83 inbest | |
15.66 inbest | 15.31 in | |
17.64 inbest | 6.22 in |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(2) | ||
Frequency Response (Hz) | 27-80 Hz | 25 Hz |
Driver Size (in) | 9.84 in | 5 in |
Connectivity(2) | ||
Input Type | XLR, TRS | WiFi |
Wireless Capability | false | true |
Build & Design(4) | ||
Weight (lb) | 34.392 lb | 26.46 lb |
Height (in) | 15.0 in | 15.83 in |
Width (in) | 15.66 in | 15.31 in |
Depth (in) | 17.64 in | 6.22 in |


Products in the top-left offer the best value (high score, low price).

Professional reviewers emphasize the LSR310S's engineering excellence, highlighting the Slip Stream Port and 200 W Class D amp that deliver deep, low-distortion bass down to 20 Hz with 113 dB SPL. They praise its flexible XLF mode and multiple crossover settings for studio versatility, especially when paired with JBL LSR305/308 monitors.
While direct consumer reviews are scarce, inferred feedback suggests users value the subwoofer's deep bass response and easy, plug-and-play connectivity, with no major complaints surfacing in the available sources.

Professional reviewers highlight the Sub 4's deep 25 Hz low-frequency response with force-canceling dual woofers, automatic Trueplay room-acoustic tuning and app-adjustable EQ deliver optimized bass for any space. Flexible placement allows vertical or horizontal orientation, even under furniture, for hidden installs.
