JBL Boombox 3: Best Sounding Bluetooth Speaker

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JBL Boombox 3

JBL Boombox 3 is perfect for music. It has a balanced sound profile and is suitable for listening to a variety of genres. Vocals and lead instruments sound clean and have presence in the mix.


  • Graphic EQ.
  • Gets loud with little compression at max volume.


  • Narrow and directional soundstage.
JBL Boombox 3 - Portable Bluetooth Speaker
Features Specifications
Powerful AudioHigh-quality sound with impressive volume levels and deep bass
Battery Life Extended playtime, often ranging from 12 to 24 hours on a single charge
Waterproof or Splashproof DesignBuilt to withstand outdoor use and exposure to water.
Bluetooth ConnectivitySeamless pairing with devices for wireless audio streaming
JBL Connect+Allows you to connect multiple JBL speakers for a synchronized sound experience.
Durable BuildRobust and rugged construction for outdoor adventures.
USB Charging PortInclude a USB port for charging your devices on the go
Customizable EQ SettingsControl the sound profile to suit your preferences.
Built-in HandleFor easy transport despite the speaker's size.
Party FeaturesSome models have built-in lights and party modes for added fun.

Differences Between Sizes And Variants

The JBL Boombox 3 is available in two stylish color options: Black and Squad. The review provided here specifically covers the performance of the Black variant, which is indicated by its label.

Additionally, there is an alternative version of this speaker equipped with Wi-Fi support, known as the JBL Boombox 3 Wi-Fi.

Should you come across any additional variations or editions of this speaker, please don’t hesitate to inform us through the forums, and we’ll make sure to incorporate the relevant information into our review.

JBL Boombox 3 - Portable Bluetooth Speaker

Compared To Other Speakers

The JBL Boombox 3 represents the latest evolution from its predecessor, the JBL Boombox 2. With its rugged build, an impressive IP67 rating for dust and water resistance, and a convenient carrying handle, it’s an ideal companion for outdoor gatherings and parties. This speaker delivers robust volume levels with minimal compression even at maximum volume, ensuring it can fill spacious areas with crystal-clear audio. Notably, it outperforms the Boombox 2 in terms of battery life, bass reproduction, and achieving a more balanced overall sound profile.

One of its standout features is compatibility with JBL’s ‘PartyBoost’ function, allowing seamless connection with other compatible JBL speakers such as the JBL Xtreme 3, JBL Charge 5, and JBL Boombox 2 for a synchronized audio experience. However, please note that it cannot be linked with older JBL speakers using the JBL Connect+ feature, like the JBL Charge 4 or JBL Xtreme 2, or with speakers from JBL’s PartyBox series such as the JBL PartyBox Encore Essential.

What’s good about the JBL Boombox 3?

The JBL Boombox 3 impresses with its exceptional sound quality and the ability to deliver high volumes without sacrificing audio quality, making it an ideal choice for those seeking a loudspeaker for parties. While it leans towards a bass-heavy profile, this can be adjusted using the JBL Portable app’s user-friendly equalizer. However, it’s worth noting that even without manual EQ adjustments, the default bass level is well-balanced, allowing for an enjoyable listening experience across various music genres. For instance, when playing tracks like “Dance Yrself Clean” by LCD Soundsystem, the bass remains pleasantly prominent without overwhelming the vocals, percussion, and synths.

The JBL Portable app, aside from its equalizer, offers straightforward navigation and includes a useful speaker user guide, sparing users the need to search for the physical manual. It maintains a streamlined interface, focusing on essential features like the three-band equalizer, software updates, and the user guide, ensuring it’s not overly complex or cluttered.

The IP67 rating is a standout feature, assuring durability against dust and water damage, making the speaker suitable for a wide range of environments. To protect against potential water and dust ingress, a rubber flap covers the AC, USB, and 3.5mm ports on the back of the speaker. Additionally, the speaker’s controls are user-friendly and highly responsive, enhancing overall ease of use.

JBL Boombox 3 - Portable Bluetooth Speaker

What's Not Good About JBL Boombox 3?

There are a few drawbacks to consider with the JBL Boombox 3. Firstly, its price point is on the higher side, and while the previous model, the JBL Boombox 2, has seen a price drop of $100 USD, the cost of the Boombox 3 may still feel somewhat steep.

Another notable concern is its substantial size and weight, which can pose challenges in terms of storage, particularly in smaller living spaces, and can make portability a bit cumbersome, despite the inclusion of a handle.

Although the JBL Boombox 3 is advertised to have Bluetooth multipoint functionality, some users have reported difficulty getting it to work as intended. Attempts to connect two devices simultaneously often result in the disconnection of the first device, leading to a less-than-smooth switching experience, irrespective of the type of device used.

Lastly, while the JBL Portable app is generally helpful, its equalizer feature is relatively basic, offering only a three-band equalizer without specifying frequencies beyond “bass,” “mid,” and “treble.” A more detailed and customizable EQ adjustment, as well as preset options, would be appreciated by users seeking more precise sound tuning.


The JBL Boombox 3 is undeniably an impressive Bluetooth speaker, offering high volume, excellent sound quality, and some sound profile customization options. The primary drawback worth considering is its relatively elevated price tag, which may seem a bit steep for some. Nevertheless, if you’re willing to invest in it, it proves to be a solid choice for your audio needs.

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