JBL Boombox 4

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

• Power Input: 100 – 240 Vac; 50/60 Hz
• Signal-to-Noise Ratio: > 80 Db
• Output power (W): (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

• Dimensions (Width x Height x Depth) (cm): 51 x 26 x 21
• Dimensions (Width x Height x Depth) (in): 20 x 10 x 8
• Weight (kgs): 5.89
• Weight (lbs): 13

Control and Connection Specifications

• Connection Ports: AC-in, USB-C
• Bluetooth Profile: A2DP 1.4, AVRCP 1.6
• Bluetooth Transmitter Frequency Range (GHz): 2.4 – 2.4835
• Bluetooth Transmitter Modulation: GFSK, π/4 DQPSK, 8DPSK
• Bluetooth Transmitter Power: ≤ 14dBm (EIRP)
• 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
• Bluetooth transmitter power: ≤ 14dBm (EIRP)
• Bluetooth version: 5.4

Battery

• Cabel Type: AC Power Cable
• Cable Length (ft): 6.6
• Cable Length (m): 2
• Battery Type: Rechargeable Li-ion Battery Pack 99.02Wh
• Battery Charge Time (hours): 3
• Maximum music playing time (hrs): 28

Features

• AC power cable (type varies by regions)
• AI Sound Boost
• Bluetooth
• Powerbank
• Supports Auracast
• Waterproof
• Wireless
• Dustproof
• IP Code: IP68

• 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