JBL Boombox 4

JBL Boombox 4

JBL Boombox 4 is the ultimate portable party speaker built for people who expect massive sound, legendary bass, and all-day endurance. Upgraded with new transducers and refined acoustic engineering, it delivers bigger, clearer, and deeper audio than ever before—whether you’re chilling indoors or taking the party outdoors.

Equipped with two 5″ woofers, two 0.75″ tweeters, and three passive radiators, the Boombox 4 pushes out an impressive 210W RMS on AC power (180W on battery). The result is room-shaking lows, detailed highs, and a wide, dynamic soundstage perfect for music, movies, and gatherings of any size.

A rugged IP67 waterproof and dustproof build ensures it can handle beaches, pools, rain, and adventure without holding back. With a massive 99.02Wh battery, you get up to 28 hours of playtime, plus the ability to charge your phone or devices using its built-in powerbank function.

Key Features:

• Unbeatable JBL Pro Sound: New 7-driver setup with two larger 5″ woofers, two 0.75″ tweeters, and three passive radiators (2 circular + 1 racetrack) for louder, clearer, deeper bass.
• AI Sound Boost: Real-time audio analysis and acoustic optimization for more power with less distortion at any volume.
• High Power Output: AC mode delivers ~210W RMS (2×65W woofers + 2×40W tweeters); battery mode delivers ~180W RMS (2×60W woofers + 2×40W tweeters).
• Dual Bass Boost Modes: Deep Bass (orange glow) for heavy rumble; Punchy Bass (white glow) for tight, energetic low-end.
• Massive Playtime: 99.02Wh battery provides up to 28 hours of playback, extendable to 34 hours with Playtime Boost.
• Replaceable Battery: User-replaceable battery design (sold separately) for longer product lifespan.
• Auracast™ Connectivity: Pair two Boombox 4 units for stereo or link multiple Auracast-enabled JBL speakers.
• Lossless Audio Playback: Supports direct lossless playback via USB-C input.
• Ultimate Durability: IP68 waterproof and dustproof construction for extreme outdoor use.
• Power Bank Function: USB-C charging output up to 30W for fast charging external devices.
• Redesigned Build: Lighter 5.89kg chassis with a bigger, bolder overall design.

Specifications:

• Brand: JBL
• Model: BOOMBOX 4
• Transducers: 2 × 5″ woofers, 2 × 0.75″ tweeters, 3 passive radiators.
• Total RMS Output: 210W (AC mode) / 180W (battery mode).
• Frequency Response: 37Hz – 20kHz.
• Battery Type: 99.02Wh rechargeable Li-ion.
• Max Playtime: Up to 28 hours (standard) / up to 34 hours with Playtime Boost.
• Charge Time: Approximately 3 hours.
• Water/Dustproof: IP68 rating.
• Bluetooth Version: 5.4.
• Multi-Speaker Support: Auracast™.
• Key Ports: AC input, USB-C (charging + lossless audio).
• Net Weight: 5.89kg (13 lbs).