JBL Professional ASB7128-WH Ultra Long Excursion High Power Dual 18" Subwoofer, White

For large venues, critical infrastructure, or command centers that demand authoritative low-frequency performance, the JBL Professional ASB7128 Pro Subwoofer delivers reliable, room-filling bass that supports clear paging, alarms and immersive audio. This dual 18-inch passive subwoofer combines JBL's Differential Drive technology with neodymium magnets and Vented Gap Cooling to provide sustained high output and long-term durability for pro AV, security and monitoring applications. Rated at 2400W RMS with a 25 Hz low-frequency response and up to 89 mm peak-to-peak excursion, the ASB7128 reproduces deep lows with minimal distortion—ensuring alerts, music and source material remain impactful and intelligible even at high SPL. The enclosure’s high vent area and switchable input modes make it flexible for ground-stacked or flown arrays alongside other AE Series components. Engineered for integrators and rental houses, this white finish subwoofer blends into installed environments while offering the rugged performance needed for continuous operation. Specify the JBL ASB7128 for your next AV, security paging or monitoring project—contact us to configure or order.

• Powerful, focused low-end (2400W RMS) that ensures intelligible paging, alarms and music playback in large venues and security/monitoring systems
• Ultra long excursion drivers (89 mm peak-to-peak) for deep, distortion-free bass at high SPLs
• Lightweight neodymium Differential Drive design reduces rigging weight for suspended arrays or stacked installations
• Vented Gap Cooling and rugged composite cones deliver consistent performance and long service life for 24/7 AV and surveillance applications
• Dual 18-inch configuration provides high output and headroom for professional sound reinforcement, public address, and security paging