{"id":34439,"date":"2026-04-09T05:23:34","date_gmt":"2026-04-09T05:23:34","guid":{"rendered":"https:\/\/fonehaus.com.pg\/?post_type=product&p=34439"},"modified":"2026-09-12T07:00:28","modified_gmt":"2026-09-12T07:00:28","slug":"jbl-boombox-4-spesker","status":"publish","type":"product","link":"https:\/\/fonehaus.com.pg\/index.php\/product\/jbl-boombox-4-spesker\/","title":{"rendered":"JBL BOOMBOX 4 SPEAKER"},"content":{"rendered":"

JBL Boombox 4 \u2013 Product Description<\/h1>\n

The JBL Boombox 4<\/a> is JBL\u2019s premier high-power portable Bluetooth speaker, engineered to deliver massive acoustic energy, legendary low-end performance, and a completely optimized outdoor-ready architecture. Featuring a redesigned, powerful transducer setup consisting of two larger 5-inch woofers, two 0.75-inch tweeters, and a combination of three passive radiators, the Boombox 4 ensures a crystal-clear sonic profile even at maximum volume. Powered by an intelligent AI Sound Boost algorithm that analyzes audio feeds in real time to minimize distortion, it delivers up to an immense 210W RMS of total system power on AC operation. Tailor your audio experience dynamically using the dedicated on-board dual bass toggle to switch between a chest-thumping Deep Bass profile or an energetic Punchy Bass response. Built with a rugged fabric exterior, a 12% lighter structure weighing 13 lbs, an integrated carry handle, and a top-tier IP68 dustproof and waterproof rating, this speaker is crafted for users who demand uncompromised club-quality sound at poolside cookouts, beach trips, and large backyard gatherings.<\/p>\n

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Key Features<\/h2>\n

\ud83d\udd0a Unbeatable JBL Pro Sound engine packing an upgraded, ultra-powerful multi-driver driver array
\n\ud83e\udd16 Real-time AI Sound Boost optimization calculating maximum safe output without distortion
\n\ud83c\udf9a\ufe0f Dual Bass Boost hardware modes to cycle seamlessly between Deep and Punchy low-end tuning
\n\ud83d\udd0b Extended 28-hour continuous runtime framework reaching up to 34 hours with Playtime Boost
\n\ud83e\udeb6 Optimized structural redesign shaving total mass down to a manageable 12.99 lbs (5.89 kg)
\n\ud83e\udeab User-replaceable internal lithium-ion battery architecture enhancing long-term product lifecycles
\n\ud83d\udca7 Full IP68 certified immersion protection deflecting heavy rain, sandstorms, and deep water pool drops
\n\ud83d\udcf6 Cutting-edge Bluetooth 5.4 wireless pipeline supporting multi-point and low-latency digital streaming
\n\ud83d\udd17 Broadcast-ready Auracast\u2122 master integration for pairing an unlimited array of matching speakers
\n\ud83d\udd0c Lossless digital audio playback processing direct from source devices using a high-speed USB-C interface
\n\ud83d\udcf1 Professional 7-band custom graphic equalizer configuration managed via the official JBL Portable app
\n\u26a1 High-capacity 99.02Wh emergency powerbank interface integrated to charge mobile devices on the go<\/p>\n<\/div>\n

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Technical Specifications<\/h2>\n
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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Category<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Product Type<\/td>\nHigh-Power Portable Waterproof Bluetooth Speaker<\/td>\n<\/tr>\n
Transducers Setup<\/td>\n2 x 5.0″ (123mm) Woofers + 2 x 0.75″ (20mm) Tweeters + 3 x Passive Radiators<\/td>\n<\/tr>\n
Total Power Output (AC Mode)<\/td>\n210W RMS (2 x 65W Woofer + 2 x 40W Tweeter)<\/td>\n<\/tr>\n
Total Power Output (Battery Mode)<\/td>\n200W RMS (2 x 60W Woofer + 2 x 40W Tweeter)<\/td>\n<\/tr>\n
Frequency Response Range<\/td>\n37 Hz to 20 kHz<\/td>\n<\/tr>\n
Signal-to-Noise Ratio<\/td>\n> 80 dB<\/td>\n<\/tr>\n
Wireless Connectivity<\/td>\nBluetooth v5.4 (Profiles: A2DP 1.4, AVRCP 1.6)<\/td>\n<\/tr>\n
Multi-Speaker Ecosystem<\/td>\nAuracast\u2122 Stereo & Multi-Speaker Wireless Pairing<\/td>\n<\/tr>\n
Physical Audio Inputs<\/td>\n1 x USB-C (Supports Digital Lossless Audio Playback Formats)<\/td>\n<\/tr>\n
Built-in Microphone<\/td>\nNot Supported (No Speakerphone Capabilities)<\/td>\n<\/tr>\n
Battery Specifications<\/td>\n99.02Wh \/ 4584mAh Lithium-Ion Battery Pack (User Replaceable)<\/td>\n<\/tr>\n
Standard Playtime Metric<\/td>\nUp to 28 Hours (Varies by volume level and audio content)<\/td>\n<\/tr>\n
Playtime Boost Metric<\/td>\nUp to 34 Hours Total Runtime via Adaptive Battery Optimization<\/td>\n<\/tr>\n
Battery Replenishment Cycle<\/td>\n3 Hours Fast Charging via C7 AC Power Cord Input<\/td>\n<\/tr>\n
Environmental Resistance Rating<\/td>\nIP68 Dustproof & Waterproof (Submersible up to 4.9 feet for 30 minutes)<\/td>\n<\/tr>\n
Physical Enclosure Dimensions<\/td>\n19.9″ x 10.4″ x 8.4″ \/ 50.6 x 26.3 x 21.3 cm<\/td>\n<\/tr>\n
Net Physical Weight<\/td>\n12.99 lbs \/ 5.89 kg<\/td>\n<\/tr>\n
Available Factory Aesthetics<\/td>\nBlack, Blue, Squad Camouflage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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Ideal For<\/h2>\n
    \n
  • Outdoor event hosts who need a durable, heavy-hitting sound setup to fill large backyard parties, pools, and beaches<\/li>\n
  • Bass enthusiasts seeking true club-level audio depth with customizable 7-band equalizers and dual bass toggles<\/li>\n
  • Long-haul party planners demanding continuous marathon runtimes without relying on a nearby power outlet<\/li>\n
  • Frequent travelers looking for maximum audio output combined with a lighter design and an ergonomic carry handle<\/li>\n
  • Audiophiles seeking long-term hardware value courtesy of a highly sustainable, user-replaceable battery design<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    JBL BOOMBOX 4 SPESKER<\/h1>\n

    Colour :\u00a0<\/strong>Black, White and Squad<\/p>\n","protected":false},"featured_media":34445,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[42],"product_cat":[21,23],"product_tag":[],"class_list":["post-34439","product","type-product","status-publish","has-post-thumbnail","product_brand-jbl","product_cat-jbl","product_cat-speakers","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/product\/34439","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/comments?post=34439"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/media\/34445"}],"wp:attachment":[{"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/media?parent=34439"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/product_brand?post=34439"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/product_cat?post=34439"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/fonehaus.com.pg\/index.php\/wp-json\/wp\/v2\/product_tag?post=34439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}