JBL LSR310S Studio Subs Review

The JBL LSR310S are large studio subs that can add some powerful bass to any monitoring system. Although designed to complement the JBL LSR300 series studio speakers, some users do use the LSR310S sub speakers with monitoring speakers from other brands as it has enough control to adapt to a variety of main monitor setups.

JBL is one of the most reputable and respected brands in the music industry. They have a long history of reliable, powerful and sturdy monitoring speakers, among which are the very popular JBL LSR 305 monitors which have made it to our best monitors list and the best selling monitors list. Just like JBL’s monitoring speakers, the LSR310S sub speakers do not disappoint and have in fact become a favorite of many.

Features of the JBL LSR310S Studio Subs

The JBL LSR310S features an attractive compact black enclosure that is designed to fit into small studios. The build quality is great, as expected from JBL. These studio subs have a custom-designed 10” down-firing high-excursion driver that delivers low frequency response well into the 20 Hz region. Featuring a 200-watt amp and internal crossover, the LSR310S sub speakers are quite heavy, weighing a total of 34.3 lbs. This isn’t out of the ordinary; subwoofers do need mass so they don’t bounce around.

JBL LSR310S studio subs

The LSR310S studio subs take advantage of JBL’s patented Slip Stream Port, which works together with the down-firing driver and 200-watt amp to deliver powerful and dynamic bass at all playback levels. According to the company, this is achieved with the help of the port’s double-flared shape, which was calculated to optimize low frequency extension. These subwoofers also come with the XLF Extended Low Frequency setting—a JBL first—which emulates the augmented bass tuning you would find in today’s dance clubs. JBL says that using this setting will bring some inspiration and a bit of the club into the studio, and if users want more inspiration, they can position the sub speakers in their studio’s nearest corner and activate this setting. This setting makes these studio subs perfect for EDM and dance monitoring applications.

As for controlling the volume, the LSR310S’ volume control has dents that make balancing the subwoofer easy and simple in any monitor system. Professional balanced inputs and outputs include the 1/4” inputs and balanced XLR.

The JBL LSR310s sub speakers also come with three crossover settings, with JBL recommending the use of the 80 Hz setting for those who want to use the subwoofers with the LSR 305, LSR 308 or any other monitoring speakers. The External setting, meanwhile, enables the use of an outboard crossover. There is a -10dBV/+4 dBu input sensitivity switch as well that allows for compatibility with a wide range of signal sources, allowing users to connect the sub speakers to high-output professional equipment without worrying about input overload.


Undeniably one of the best subwoofers on the market, the JBL LSR310S have received mostly positive reviews for their outstanding performance. While it’s not loud enough to throw you around the room, it does have more than enough power to deliver all the bass you need in your mixes. These subwoofers are ideal for people who want just enough bass to augment their good quality studio speakers. Delivering clean and tight bass, they help with identifying problematic areas in the bass frequencies.

These studio subs work great when paired with the LSR305, especially in a small room, with some users noting that the pairing is much better than just using the LSR308 without any subwoofers.

Read the full JBL LSR305 review

The LSR310s sub speakers also sound good with other speakers, and one user commented that they sound great with his Dynaudio BM5A.

There are some users, however, who claim that the LSR310S are underpowered and do not give enough bass. One user has a helpful response to this, and says that the room placement makes a big difference: “You have to be a good 5-10′ back from the sub for the sub bass to fully bloom, but boy can it pump out a lot of CLEAN bass for a 10″ speaker.”

Technical Specifications

Amplifier Class: Class D
Woofer: 10″ down-firing
Frequency Response:
Low Frequency Extension: 27Hz
Max Peak SPL: 113 dB
Power Output: 200 W
Input Impedance: n/a
Phase: n/a
Dimensions: 17.65″ (448mm) x 15″ (381mm) x 15.65″ (398mm)
Weight: 34.3 lbs (15.6 kg)

Other Feedback

The great thing about audio is that it is subjective. If you are going to add a subwoofer, you can do much worse than this solid offering from JBL, a company full of solid offerings. If your intent is to have Mrs. Smith, who lives four doors down, call the cops, there are probably better subs than the LSR310S to do that. Otherwise, for musical intentions, this is an excellent package….. Hear The Music

We love this because of the JBL name as they’ve been consistent in bringing quality, extremely powerful products to the equipment game for years now. This particular subwoofer is one of the most powerful, coming in at 200 watts with very nicely made 10″ drivers. This thing can rumble… The Wire Realm


The JBL LSR310S studio subs are an excellent addition to your monitoring studio, whether you’re using JBL LSR305 or 308 monitors or other models of studio speakers. When used with subtlety with a good pair of studio speakers, these sub speakers can augment the low frequency spectrum and provide more life to your recordings and mixes. Featuring tight, powerful bass, they can help you identify problematic spots in your mixes, allowing you to improve them considerably. Its excellent performance, coupled with its affordable price tag, makes it one of the best subwoofers available today.

Do you already have the JBL LSR310S Studio Subs? Tell us what you think about them in the comments section below!

9.5 Total Score
Yamaha hits the mark once again with this studio subwoofer

Great value for money and performance from Yamaha

  • Looks great
  • Good build quality
  • Deep, clean and tight bass
  • May lack volume in larger rooms
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