The design of the JBL Boombox 4 combines durability and practicality. With an IP68 rating, it is both waterproof and dustproof, ensuring reliable performance in harsh outdoor conditions. The speaker has a large volume of 28343.92 cm³, and its built-in subwoofer measures 127 mm for enhanced bass. Weighing 5890 g and with dimensions of 262.9 mm in height, 506.4 mm in width, and 212.9 mm in thickness, it offers a solid build, though it does not come with a travel bag. Notably, it includes a detachable cable and a control panel located on the device itself, but lacks features like a touch screen or RGB lighting.
The JBL Boombox 4 delivers high-quality sound with stereo speakers and a subwoofer for rich, deep bass. It covers a wide frequency range from 37 Hz to 20,000 Hz, ensuring detailed audio across both low and high frequencies. The speaker outputs a powerful 4 x 200W audio, and it also features a passive radiator for improved sound resonance. With a signal-to-noise ratio (SNR) of 80 dB, it ensures clear audio without unwanted noise, though it does not include magnetic shielding.
The JBL Boombox 4 is powered by a 4584 mAh rechargeable battery, providing up to 34 hours of battery life for long-lasting use. It charges in just 2 hours, making it convenient for quick recharges. The speaker also features a battery level indicator, so you can easily monitor the remaining charge, but it does not support wireless charging or have a removable battery.
The JBL Boombox 4 features Bluetooth 5.4 for reliable wireless connectivity, with a maximum range of 10 meters. While it does not support features like NFC pairing, aux input, or AirPlay, it does include a USB Type-C port for charging and data transfer. The speaker also supports Auracast for extended Bluetooth audio broadcasting, but lacks other advanced codecs such as aptX, LDAC, and AAC.
The JBL Boombox 4 can be used wirelessly, allowing for convenient placement without the need for cords. It also supports remote control via a smartphone, providing an easy way to manage the speaker from a distance. Notable features include voice prompts to guide the user through settings and a sleep timer for automatic shutdown. However, it does not support voice commands, fast pairing, or a mute function.
The JBL Boombox 4 does not support stereo pairing for a multi-speaker setup, limiting its ability to deliver stereo sound through multiple connected units.
