JBL Boombox 4

JBL Boombox 4

The JBL Boombox 4 (also written as jbl boombox 4, Boombox 4 by JBL, BOOMBOX4, etc.) is the latest portable Bluetooth speaker from JBL — designed to deliver powerful, room-filling sound with deep bass, long battery life, and rugged build quality. This model combines performance, portability, and durability. The following description is based on reliable sources such as JBL’s official specifications and respected retailer
reviews.

Features & Technical Details

Speaker Configuration & Sound Output

• Drivers & Radiators: JBL Boombox 4 packs 2 × 5-inch (123 mm) woofers, 2 × 0.75-inch (20 mm) tweeters, and 3 passive radiators (two circular + one racetrack-shape) to deliver powerful, balanced sound and deep bass.

• Power Output: In AC (plugged-in) mode, each woofer delivers 65 W RMS and each tweeter 40 W RMS. In battery mode, woofers output 60 W RMS, tweeters 40 W RMS.

• Frequency Response: 37 Hz – 20 kHz — covering deep bass up to full high frequencies, ensuring full-range audio.

• Signal-to-Noise Ratio (SNR): > 80 dB, helping maintain clarity and clean sound even at high volumes.

Connectivity & Audio Quality

• Bluetooth: The speaker uses Bluetooth 5.4, providing stable wireless streaming and support for modern devices.

• USB-C Audio: Supports USB-C “lossless” audio playback, which allows high-fidelity, uncompressed audio playback when connected to a compatible device via cable — useful for audiophiles or when wireless Bluetooth compression is a concern.

• Multi-speaker Pairing / Party Mode: Offers multi-speaker connectivity via Auracast™, allowing you to link multiple compatible JBL speakers for stereo or big-party sound.

Battery & Portability

• Battery Pack: Powered by a rechargeable Li-ion battery (≈ 99.02 Wh) that is user-replaceable — a feature that extends the lifespan of the speaker.

• Playback Time: Up to 28 hours on a full charge under standard use, with up to 34 hours using “Playtime Boost” mode.

• Charging Time: Roughly 3 hours for a full charge.

• Portability: Despite its big sound, JBL Boombox 4 remains reasonably portable — it weighs around 5.9 kg and measures about 51 × 26 × 21 cm, with a built-in handle to facilitate transport.

Durability & Build

• Waterproof & Dustproof: Rated IP68, meaning it’s protected against dust ingress and water immersion — suitable for outdoor use (beach, poolside, camping, etc.).

• Sustainable Materials: The speaker grille uses recycled fabric and plastic, and packaging uses responsibly-sourced paper, reflecting an eco-friendly design.

• Design and Build: JBL refreshed the “Boombox” style: the speaker is slightly larger overall than prior models but lighter, making it easier to carry while delivering bigger audio output.

Benefits — What You Get with JBL Boombox 4

• Big, powerful bass and full-range audio — the dual woofers, tweeters, and passive radiators deliver rich lows, clear mids, and crisp highs. Perfect for parties, outdoor gatherings, or music lovers who want punchy bass.

• High-quality “lossless” sound when wired — via USB-C, you can enjoy clean, uncompressed audio, ideal for high-fidelity listening sessions or connecting to laptops / digital audio sources.

• Excellent battery life + portability — with up to ~30–34 hours playback and a replaceable battery, Boombox 4 is reliable for extended outings or multi-day use.

• Durability for outdoors and rough conditions — IP68 rating and rugged build make it suited for outdoor parties, trips, beach days, or unpredictable weather.

• Flexibility and expandability — Bluetooth 5.4 + Auracast multi-speaker pairing supports stereo setups, party modes, or linking with other JBL speakers for larger sound.

• Sustainability-conscious design—using recycled materials and eco-friendly packaging reflects modern environmental awareness.

Available Colors

JBL Boombox 4 is offered in these color options: Black, Blue, and Squad (a camouflage-style design).

Q&A — Why Consider Getting JBL Boombox 4?

Q: Who should get JBL Boombox 4?
A: If you want a powerful, portable speaker that can deliver loud, clear sound with strong bass — and you plan to use it for parties, outdoor events, or heavy-duty listening—Boombox 4 is an excellent choice. It’s also ideal for users who value portability, long battery life, and durability.

Q: Is it good for indoor use (e.g., apartments, small rooms)?
A: Yes—despite its size and power, you can control the volume. Boombox 4 gives you flexibility: you can enjoy soft background music or crank it up for a big sound when needed.

Q: What’s the advantage of the USB-C lossless audio feature?
A: USB-C allows you to play audio without Bluetooth compression. That means clearer, more detailed sound — especially beneficial if you care about audio fidelity or want to connect to a laptop or digital audio player.

Q: Does the replaceable battery matter?
A: Yes — it prolongs the life of the device. Instead of discarding the whole speaker when the battery degrades over years, you can just replace the battery. This saves money and reduces waste.

Q: Are the “Squad” or “Blue” colors significantly different from classic Black?
A: The colors don’t affect audio, but they offer stylistic choices. Black is classic and neutral; Blue gives a more vibrant look; Squad camo is rugged/outdoor-friendly and may suit outdoor settings or aesthetic preferences.