The JBL Xtreme 4 is the latest addition to JBL's lineup of portable Bluetooth speakers, promising to deliver robust sound quality and enhanced features. Known for its rugged design and powerful audio output, the Xtreme 4 aims to build on the success of its predecessor, the Xtreme 3. With a price tag of £330 / $380 / AU$430, it positions itself as a premium option in the portable speaker market. This review will delve into various aspects of the JBL Xtreme 4, including its design, features, sound quality, and overall value, to help you determine if it's the right speaker for you.
Design

The JBL Xtreme 4 retains the cylindrical shape that has become a hallmark of the Xtreme series. The speaker is wrapped in a combination of recycled plastic and fabric, making it both eco-friendly and durable. It boasts an IP67 rating, ensuring it is both waterproof and dustproof, ideal for outdoor use. The button layout has been redesigned for better usability, now featuring a central block of six buttons, including a new button for Auracast functionality.
The speaker also includes silicone bubble feet for added stability, reducing the chances of it rolling over. The driver configuration remains the same as the Xtreme 3, with two 70mm woofers and two 20mm tweeters, complemented by passive radiators at either end. While some may find the design less appealing compared to competitors like the Bose SoundLink Max and Dali Katch G2, the Xtreme 4's rugged build is perfect for those who prioritize durability over aesthetics.
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Features

The JBL Xtreme 4 comes packed with features designed to enhance the user experience. One of the most notable improvements is the battery life, which now stands at 24 hours, up from 15 hours in the Xtreme 3. Additionally, the speaker features a replaceable battery, allowing users to extend its lifespan further. The Playtime Boost feature can squeeze an extra six hours out of the battery, although it may compromise sound quality.
The speaker charges via USB-C and can also charge connected devices using its built-in battery. AI Sound Boost is another new feature, designed to maintain sound quality at high volumes by predicting the speaker's movement and power response. Auracast Bluetooth technology replaces the PartyBoost feature, allowing for future-proofing and the ability to connect multiple JBL units.
The JBL Portable app offers EQ presets and a five-band equalizer, allowing users to customize the sound to their liking. The default JBL Signature sound setting provides a balanced audio experience, but other presets like 'Chill' and 'Energy' offer different sound profiles.
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Sound Quality

The JBL Xtreme 4 delivers a sound quality that is both clear and detailed, with tight, weighty bass. The speaker produces a well-balanced sound across all frequencies, making it suitable for various music genres. Low frequencies are punchy and poised, while highs are crisp and clear. The AI Sound Boost feature helps maintain sound quality at high volumes, preventing distortion.
In testing, the Xtreme 4 performed admirably across different tracks. For instance, Declan McKenna's "Brazil" showcased the speaker's ability to handle playful electric guitar and percussion with energy and precision. Yungblud's "Breakdown" highlighted the speaker's capability to deliver emotional vocals and intricate melodies with clarity and cohesion.
Compared to its predecessor, the Xtreme 3, the Xtreme 4 offers improved clarity and detail, making it a step up in terms of sound quality. While it may not match the classier design of some competitors, its audio performance is hard to fault.
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Value

The JBL Xtreme 4 is priced at £330 / $380 / AU$430, making it a premium option in the portable Bluetooth speaker market. While it offers excellent sound quality, robust build, and a host of features, its high price point may be a deterrent for some. Competitors like the Dali Katch G2 and Bose SoundLink Max offer similar audio performance and features at comparable or slightly higher prices.
For those on a tighter budget, alternatives like the JBL Charge 5 or the Tribit Stormbox Blast provide good sound quality and features at a lower cost. However, if you're a loyal JBL fan or need a speaker that can withstand harsh outdoor conditions, the Xtreme 4 is a solid investment.
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Conclusion

The JBL Xtreme 4 is a well-rounded portable Bluetooth speaker that excels in sound quality, durability, and features. Its rugged design and IP67 rating make it ideal for outdoor use, while the improved battery life and AI Sound Boost feature enhance the overall user experience. Although it comes with a higher price tag, the Xtreme 4 offers excellent value for those who prioritize sound quality and durability.
In summary, the JBL Xtreme 4 is a worthy successor to the Xtreme 3, offering subtle yet significant improvements in various areas. Whether you're a loyal JBL fan or someone looking for a reliable and powerful portable speaker, the Xtreme 4 is a solid choice.
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