JBL 5628 – Ultra High-Power Dual 18″ Cinema Subwoofer for Professional Installations
The JBL 5628 represents the pinnacle of professional subwoofer engineering, designed to meet the demands of high-performance cinema sound systems. With its ultra long excursion dual 18-inch drivers, this subwoofer delivers incredibly deep, powerful, and distortion-free bass that fills even the largest auditoriums.
Whether installed in a commercial theater, screening room, or high-end home cinema, the JBL 5628 ensures breathtaking low-frequency performance that immerses audiences in every explosion, note, and rumble.
Design & Build Quality of the JBL 5628
Engineered with JBL’s renowned craftsmanship, the JBL is built for precision, durability, and acoustic excellence. The heavy-duty enclosure is constructed from high-density birch plywood, ensuring both strength and minimal resonance. Its dual front-ported design enhances air movement, allowing for maximum output without unwanted noise.
Additionally, the cabinet’s black textured finish provides professional aesthetics while protecting against wear and tear. JBL’s meticulous attention to structural integrity guarantees consistent performance, even under extreme power conditions.
Power Output & Performance
The JBL delivers extraordinary low-frequency performance thanks to its two 18-inch ultra long-excursion woofers, each engineered for precision and durability. With a continuous power handling of 2400 watts and peak output exceeding 136 dB SPL, this subwoofer provides unmatched low-end energy and control.
Moreover, its frequency response extends down to 25 Hz, ensuring deep, visceral bass that can be both felt and heard. As a result, the JBL 5628 enhances cinematic realism and emotional impact across all genres — from explosive action scenes to orchestral soundtracks.
Advanced Technology & Features
Dual 18″ Ultra Long Excursion Transducers: Provide extreme displacement for deep bass at high output levels.
Symmetrical Field Geometry Magnet Structure: Minimizes distortion and maintains linear cone movement.
Front-Ported Enclosure Design: Enhances airflow efficiency while reducing turbulence and compression.
Computer-Optimized Crossover Network: Ensures seamless blending with screen and surround channels.
THX & Dolby Cinema Certified Performance: Meets global standards for professional cinema sound reproduction.
Because of these technologies, the JBL 5628 produces incredibly accurate and powerful bass that elevates the overall cinema experience.
Connectivity & Integration Options
Integration is effortless with the JBL , making it a top choice for professional installers. It connects via dual heavy-duty binding posts or Neutrik Speakon connectors, ensuring secure signal transmission.
When paired with Crown DSi or DCI amplifiers, the JBL 5628 achieves maximum efficiency and precision through advanced DSP control. Furthermore, its front-firing ports allow flexible installation in baffle walls or behind screens, simplifying setup without compromising performance.
Ideal Use Cases for the JBL 5628
Commercial Cinemas: Provides reference-level bass for Dolby Atmos and DTS:X soundtracks.
Premium Home Theaters: Delivers professional-grade low-frequency effects with stunning clarity.
Auditoriums & Large Venues: Enhances concert and event sound with cinematic bass energy.
Post-Production Studios: Offers accurate low-end monitoring for sound designers and mixers.
Because of its efficiency and versatility, the JBL 5628 adapts seamlessly to a wide range of acoustic environments.
Why Buy the JBL 5628
Investing in the JBL means choosing reliability, precision, and performance trusted by professionals worldwide. Built with JBL’s legendary expertise and backed by decades of acoustic innovation, it’s engineered to perform flawlessly in demanding installations.
Its rugged design, ultra-efficient transducers, and unparalleled power output make it a long-term investment for any serious cinema or performance venue. Moreover, with JBL’s global support network, it ensures lasting value and peace of mind.
Visit Official JBL Professional Website for detailed specifications, manuals, and acoustic data.
Pair with our Crown DSi Series Power Amplifiers or JBL 4722N Screen Channel Speakers for a full professional cinema sound system.
