Unbeatable sound all day long
We turn it up our way—anywhere. The all-new JBL Boombox 4 is bigger, bolder, and better than ever, with powerful JBL Pro Sound that stays loud and clear, with deep thumping bass. AI Sound Boost analyzes our music in real time and adjusts the sound to give us more power with less distortion, even when we turn it all the way up. It packs two bigger woofers, two tweeters and three passive radiators, so every track hits harder and sounds cleaner. When we want to fine-tune the vibe, we just switch between deep or vibrant punchy Bass Boost settings to match our mood. We gave the classic Boombox design a fresh upgrade—it’s larger but lighter, so we can take it wherever the party goes: the beach, the block, or the backyard. It’s IP68 waterproof and dustproof, so weather’s never a dealbreaker. And, with up to 34 hours of playtime (thanks, Playtime Boost), we’re set for the long haul. With the JBL Boombox 4, we carry the mood and the energy, everywhere we go.
General Specifications
- Signal-to-Noise Ratio      > 80 Db
- Power Input             100 – 240 Vac; 50/60 Hz
- Output power (W)Â Â Â Â Â Â Â Â (AC mode) – 2 x 65W RMS Woofer, 2 x 40W RMS Tweeter (Battery mode) – 2 60W RMS Woofer, 2 x 40W RMS Tweeter
Audio Specifications
- Frequency Response     37Hz – 20 kHz
- Transducer             2 x 5 inch / 2 x 123mm woofer, 2 x 0.75 inch / 2 x 20mm Tweeter, 2 pcs circle + 1 pc racetrack passive radiator
Dimensions
- Weight (lbs)Â Â Â Â Â Â Â Â Â Â Â 13
- Dimensions (Width x Height x Depth) (cm)Â Â Â Â Â Â Â 51 x 26 x 21
- Dimensions (Width x Height x Depth) (in)Â Â Â Â Â Â Â Â 20 x 10 x 8
- Weight (kgs)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5.89
Control and Connection Specifications
- Bluetooth profiles             A2DP 1.4, AVRCP 1.6
- Bluetooth frequency          2.4 GHz – 2.4835 GHz
- Bluetooth transmitted modulation     GFSK, π/4 DQPSK, 8DPSK
- Bluetooth transmitter power       ≤ 14dBm (EIRP)
- Bluetooth version              5.4
- Connection                  AC-in, USB-C
- Bluetooth Profile              A2DP 1.4, AVRCP 1.6
- Bluetooth Transmitter Frequency Range (GHz)Â Â Â Â Â Â Â Â 2.4 – 2.4835
- Bluetooth Transmitter Power             ≤ 14dBm (EIRP)
- Bluetooth Transmitter Modulation        GFSK, π/4 DQPSK, 8DPSK
- Connection Ports                       AC-in, USB-C
Battery
- Maximum music playing time (hrs)Â Â Â Â Â Â Â Â Â Â 28
- Battery Type                              Rechargeable Li-ion Battery Pack 99.02Wh
- Cabel Type                                AC Power Cable
- Cable Length (ft)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6.6
- Cable Length (m)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2
- Battery Charge Time (hours)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3
Features
- Dustproof        Yes
- AC power cable (type varies by regions)Â Â Â Â Â Â Yes
- Supports Auracast           Yes
- IP Code                    IP68
- Powerbank                 Yes
- Waterproof                 Yes
- Wireless                    Yes
- Bluetooth                  Yes
- AI Sound Boost             Yes
What’s in The Box?
- 1 x JBL Boombox 4
- AC power cord (AC plug and quantity varies by region)
- 1 x Quick start guide
- 1 x Safety sheet
- 1 x Warranty card
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