JBL LSR 310 S Review: The ultimate guide to this model

Alistair Vance
Written by Alistair Vance

March 30, 2026

JBL LSR 310 S

JBL LSR 310 S Review: The ultimate guide to this model

Construction and specifications of JBL LSR 310 S

  • Power: 200 watts
  • Class D amplifier
  • 27 Hz (-10 dB)
  • Max. sound pressure level: 113 dB
  • Analogue stereo inputs on XLR or jack
  • Stereo outputs: XLR
  • 180º phase adjustment
  • 80 or 120 Hz high-pass filter
  • XLF preset for emphasized sub-bass
  • 180º phase switch
  • Dimensions (H x W x D): 448 x 381 x 398 mm
  • Weight: 15.6 kg
  • Colour: Black

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JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

JBL LSR 310 S Review: The ultimate guide to this model

Additional Information

Customer Review Summary

The JBL LSR 310 S subwoofer has proven to be an exceptional addition to my audio setup, particularly when paired with the JBL LSR 305 monitors. Its sound quality is impressive, delivering clear and powerful bass that enhances musical clarity across various genres, from jazz to electronic music.

One of the standout features is its ability to reproduce low frequencies down to 27 Hz, allowing for a nuanced listening experience where every note is discernible. The bass is tight and well-defined, avoiding any muddiness or distortion, even at higher volumes. This makes it suitable for mixing and mastering, as it relieves the monitors from reproducing the lower end, resulting in a more balanced sound.

While it is slightly larger than expected, its design integrates well into my studio space. The build quality feels robust, and the absence of extraneous noises is a significant plus. However, it would be beneficial to have more control options, such as a variable crossover frequency, as the fixed settings may not suit every setup perfectly.

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In terms of connectivity, the XLR inputs and outputs are adequate, though additional options for integrating with home theatre systems would be advantageous. The subwoofer has a protection circuit that prevents overload, which adds to its reliability during extended use.

Overall, the LSR 310 S is a remarkable subwoofer that enhances the audio experience significantly. Its ability to deliver deep, impactful bass without overwhelming the mix makes it a worthy investment for anyone serious about music production or sound design. I highly recommend it for those looking to elevate their audio setup.



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Alistair Vance

Based in Bristol, Al has spent over a decade mixing local bands before specialising in hybrid studio consulting. He’s obsessed with the price-to-performance ratio, helping musicians achieve a "Radio Ready" sound without the need for a £50,000 Neve console. No fluff, just honest gear reviews to get your tracks sounding professional on a real-world budget.

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