JBL
JBL Boombox 4 Portable Bluetooth Speaker
Best portable speaker for outdoor enthusiasts needing long-lasting, powerful sound.
The JBL Boombox 4 is a portable Bluetooth speaker designed for both home and outdoor use, delivering rich JBL sound with user-friendly controls. It features a redesigned system with 2 woofers, 2 tweeters, and 3 passive radiators for full-bodied audio and powerful bass. Enjoy crystal-clear, lossless audio playback and customize the low-end response with two Bass Boost modes. Expand your sound by connecting multiple speakers via Auracast compatibility. With up to 28 hours of playtime and IP68-rated dustproof and waterproof protection, the Boombox 4 is built to keep the music going anywhere, in any environment. Experience massive sound with the JBL Boombox 4, a portable Bluetooth speaker designed for all-day listening. It delivers powerful JBL Pro Sound with deep, thumping bass, enhanced by AI Sound Boost for real-time audio adjustment and reduced distortion. Featuring two larger woofers, two tweeters, and three passive radiators, it ensures every track is hit with clarity and impact. Customize your audio with two Bass Boost settings. Its larger, yet lighter, redesigned body makes it easy to carry, while the IP68 waterproof and dustproof rating ensures durability. Enjoy up to 34 hours of playtime on a single charge, with an additional 6 hours from Playtime Boost.
$449.95
Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 297
Best Boomboxes
Price vs Category Average
+161%
Above average
Powered
Yes
/ Yes
Who it's for
- Party hosts needing room-filling audio for large gatherings
- Music lovers wanting uninterrupted playback for long events
- Outdoor adventurers requiring durable, weather-resistant gear
Who should skip it
- Travelers prioritizing lightweight and compact gear
- Budget-conscious shoppers seeking more affordable audio options
- Audiophiles preferring a neutral and balanced sound signature
Performance breakdown
Audio Output Power
210W RMS delivers massive, room-filling sound with deep, thumping bass.
Battery Longevity
Up to 40 hours of total playtime keeps the party going longer.
Durability Rating
IP68 certification ensures total protection against dust and water submersion.
Connectivity Versatility
Auracast and Bluetooth 5.4 provide seamless multi-speaker pairing and stable streaming.
Portability Factor
Lightweight design helps, but the 13-pound frame remains a substantial carry.
Sound Customization
AI Sound Boost and dual bass modes offer precise, real-time audio tuning.
Key Specs
Powered
Yes
Total Power
210W RMS (2 x 65W woofer, 2 x 40W tweeter)
Speaker Configuration
2 x 4.84" Woofers, 2 x 0.78" Tweeters, 1 x Racetrack Passive Radiator
USB
1 x USB-C (power in/out, audio in)
Bluetooth
v5.4
Frequency Response
37Hz to 20kHz
Enclosure Type
IP68: Dust-proof, Waterproof up to 4.9' Depth
Weight
12.98 lbs
Features
- Redesigned woofer, tweeter, and radiator system for upgraded sonics
- Dual Bass Boost modes for tailored low-end response
- Auracast compatibility for easy multi-speaker expansion
- AI Sound Boost analyzes and optimizes sound in real time
- Lossless audio playback for authentic sound
- Built-in handle and lightweight design for portability
- IP68-rated dustproof and waterproof protection
- Up to 28 hours of continuous playtime
- Massive JBL Pro Sound with AI Sound Boost for enhanced audio
- Up to 34 hours of playtime with an additional 6 hours from Playtime Boost
- IP68 waterproof and dustproof for durability in any environment
- Auracast™ enabled for multi-speaker connection and stereo pairing
- Dual Bass Boost settings (Deep Bass and Punchy Bass) to match your mood
- Redesigned for a larger sound but lighter weight for portability
- Lossless audio playback via USB-C connection
- Constructed with recycled materials and eco-friendly packaging
What customers say
Customers consistently praise the JBL Boombox 4 for its exceptional sound quality and robust, durable design. Users frequently highlight the powerful bass and clear audio, making it ideal for outdoor gatherings and larger spaces. Its sturdy build and long lasting battery life also contribute significantly to a positive experience, reinforcing its reputation as a reliable portable speaker. Many find its performance justifies the investment, appreciating the premium feel and consistent output.
Know before you buy
The JBL Boombox 4 offers up to 28 hours of standard playtime. If you enable the Playtime Boost feature, you can extend that to a total of 34 hours on a single charge.
The Boombox 4 uses Auracast technology for multi-speaker expansion. It is compatible with other Auracast-enabled JBL speakers, but it may not wirelessly pair with older models that rely on legacy PartyBoost or Connect+ systems.
An IP68 rating means the speaker is fully dustproof and can be submerged in water up to 4.9 feet deep. You can safely use it at the beach, by the pool, or in dusty environments without worrying about internal damage.
The speaker features two distinct modes: Deep Bass and Punchy Bass. You can toggle between these settings to prioritize either a resonant, low-frequency rumble or a tighter, more aggressive impact depending on the music genre.
No, the USB-C port is versatile. It functions as a power input for charging, a power output to charge your mobile devices, and an audio input for high-quality, lossless playback.
The Boombox 4 weighs 12.98 pounds. While it has been redesigned to be lighter than previous generations, it is a substantial piece of equipment, so the built-in handle is essential for portability.
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