JBL Boombox 4
Most powerful JBL portable waterproof speaker
Massive sound with deep, punchy bass and up to 34 hours of playtime. Rugged, waterproof and dustproof design built to go anywhere — plus a built-in power bank to keep your devices charged.
Why buy from JBL?
- Free shipping on orders $49+
- Free 30-day returns
- Official 1-year warranty
Features
Unbelievable, all-pro sound with AI Sound Boost
Smart audio processing analyzes your music in real time to deliver louder, clearer sound with deeper bass and less distortion — even at full volume.
Read MoreSpecs & Downloads
Description
The JBL Boombox 4 is built for the moments that need big sound. Dual woofers and tweeters deliver deep, punchy bass and crisp highs that fill any room, backyard or beach without distortion, even at full volume.
With up to 34 hours of playtime and a built-in power bank, you stay in the mix all day and keep your phone charged. The rugged IP67 design shrugs off water, sand and dust, and the sturdy handle makes it easy to carry the energy everywhere you go.
Pair two speakers for stereo sound, or connect more with the JBL app and turn any gathering into a party.
Specs
General Specifications
- Output power (W)
- (AC mode) 2 × 65W RMS Woofer, 2 × 40W RMS Tweeter
(Battery mode) 2 × 60W RMS Woofer, 2 × 40W RMS Tweeter - Power Input
- 100 – 240 Vac; 50/60 Hz
- Signal-to-Noise Ratio
- > 80 dB
Audio Specifications
- Frequency Response
- 37 Hz – 20 kHz
- Transducer
- 2 × 5 inch / 2 × 123 mm woofer, 2 × 0.75 inch / 2 × 20 mm tweeter, 2 pcs circle + 1 pc racetrack passive radiator
Dimensions
- Dimensions (W × H × D) (cm)
- 51 × 26 × 21
- Dimensions (W × H × D) (in)
- 20 × 10 × 8
- Net Weight (kg)
- 5.89
- Net Weight (lbs)
- 13
Control & Connection
- Connection Ports
- AC-in, USB-C
- Connection
- AC-in, USB-C
- Bluetooth profiles
- A2DP 1.4, AVRCP 1.6
- Bluetooth frequency
- 2.4 GHz – 2.4835 GHz
- Bluetooth transmitted modulation
- GFSK, π/4 DQPSK, 8DPSK
What's in the box?
- 1 × JBL Boombox 4
- 1 × Power adapter
- 1 × Quick start guide
- 1 × Warranty card
Documents & downloads
Reviews
Customer Reviews
Great Speaker
Loving the speaker and everything about it the base how loud it is the functionality is easy connect to Bluetooth it’s so loud. I want to bring it over with me. It’s a bit heavy but because it’s heavy duty a great speaker so happy with my purchase.
Great for family gatherings
I recently purchased the JBL Boombox 4. I used the JBL Boombox 4 during a backyard BBQ and the sound quality was impressive. The bass was strong even outdoors, and the speaker got very loud without distortion. The Bluetooth connection was quick and the battery lasted for hours. I also liked that it is waterproof, which makes it great for outdoor use. My family and I really enjoyed using it and I would definitely recommend it.
Just a great music player
So i needed something to play music in the garden that actually sounded good. This is larger than alot of portable speakers but my god is it worth it, sound and bass are superb. Ive charged it once and it has lasted ages so far! I fully reccomend it to anyone who wants great music.
Amazing sound!
Yet again another JBL product landed on my door step in the most robust packaging. JBL really know how to ensure their products reach you in the best condition. I have to tell you something from the off, I have been an avid Bose addict for many a year but was tempted away from them when I heard their soundbar with sub, wow what great sound that is so I have high hopes for this Boombbox 4. I have started building my outside kitchen ready for the summer and this puppy being waterproof and robust is going to be the perfect addition. Impressed that it was almost fully charged right out of the box, pairing it via BT was as simple as putting one foot in front of the other. The sound from this is amazing and when you push the bass enhancer button OMG even at low volume it certainly gives an amazing rich full sound that is perfect for the garden party! The battery goes on for ever, the louder and bassier it is the quicker the battery will drain but saying that I have yet to recharge it since I got it. This does not have any sound enhancement ability so you would have to rely on your broadcasting device to do that however I have yet felt the need to enhance any aspect of the sound I push out to it as it all sounds amazing. The last get together I had went down really well with this JBL supplying the entertainment, I set up an old iPad for people to add tunes to the playlist, I was able to get the BB4 to power the iPad from its built in USBC plug located at the rear, it's own built in powerpack is a great bonus. Lastly the battery, its replaceable!!! So should the battery life ever drop then an affordable battery replacement is available, no need to send away it's a home DIY replacement procedure.
