JBL Professional 5048239X (2279H) - Original 18" LF Woofer for SRX828S, 8 Ω (OEM Replacement)

JBL Professional 5048239X (2279H) - Original 18" LF Woofer for SRX828S, 8 Ω (OEM Replacement)

JBL 5048239X is the 2279H low-frequency driver , the original 18" (460 mm), 8 ohm woofer used in the SRX828S passive subwoofer. It is an OEM service replacement that restores your system to factory-quality performance, leveraging JBL's Differential Drive® (dual voice coils and double air gap) technology for improved thermal control, lower power compression, and high output with low distortion. If your SRX828S has suffered from component fatigue, 5048239X allows you to directly replace the damaged unit, maintaining mechanical and electrical compatibility.

Main features

• Official Replacement: 18" 8Ω 2279H woofer specified by JBL for the SRX828S (dual 18" passive).
• JBL Differential Drive® technology: double coil and double air gap for lower compression and better heat dissipation at high levels.
• Direct installation: screws and wires into the original location of the SRX828S without modifications.
• Professional reliability: robust construction for intensive use on tour and in installations.

Product benefits

• Restore Factory Sound: Restores the bass extension, SPL, and timbre intended by the SRX828S design.
• Less downtime: Complete and certified spare parts, ideal for preventive or corrective maintenance.
• Guaranteed compatibility: reference verified by the manufacturer and authorized distributors.

Compatibility and notes

• Compatible: SRX828S (Dual 18" Passive Subwoofer).
• Not to be confused with the SRX818SP/SRX828SP (self-powered) models, which use the 2 Ω 2279F (p/n 5048249X ).
• In the SRX900 series (active), variants such as 2279-1 / 2279H-1 specific to those models are used.

Frequently Asked Questions

• Does it include hardware or a gasket? No, the components from the original SRX828S enclosure are reused.
• Does this work with the SRX828SP (powered)? No; that model uses the 2279F (2 Ω) . Always check the part number before purchasing.
• Is it necessary to recalibrate the system? No. As an OEM, it maintains the JBL-recommended settings for the SRX828S.

Description for projects

JBL 5048239X replacement part : 18" (460 mm) 2279H woofer, 8 Ω , Differential Drive® technology, intended as a direct replacement in SRX828S (dual 18" passive system). Application: maintenance/service in professional bass reinforcement.