The JBL 18-inch Double Magnet Subwoofer Driver is a heavy-duty, professional-grade naked woofer designed specifically for custom subwoofer builds and cabinet upgrades. Engineered for extreme low-frequency reproduction, this driver features a powerful double-magnet motor structure that provides superior control over the cone, resulting in tighter, more accurate bass even at high volume levels.

​Whether you are building a front-loaded bass reflex cabinet or a manifold-vented enclosure, this 18" driver is built to move air. Its rugged cast-aluminum frame and high-temperature voice coil ensure it can handle the intense thermal and mechanical stress of professional sound reinforcement, making it a favorite for church sound installations, club systems, and mobile DJ rigs.

​Key Features:

​Double Magnet Motor: Enhanced magnetic flux for increased sensitivity and precise cone displacement.

​High Power Handling: Capable of delivering deep, sustained bass with an 4000W RMS power rating.

​Superior Cooling: Advanced vented pole piece and heat-sink design to minimize power compression during extended use.

​Rugged Construction: Features a heavy-duty cast aluminum basket and a reinforced paper cone for long-lasting performance.

​Versatile Application: Ideal for building custom SRX-style or ground-stack subwoofers.

​Clean Low-End: Low resonant frequency (Fs) allows for deep extension down to the sub-bass range.

​Technical Specifications:

​Driver Diameter: 18 Inches (460 mm)

​Voice Coil Diameter: 100 mm (4 inches)

​Magnet Type: High-grade Double Ferrite Magnets

​Nominal Impedance: 8 Ohms

​Sensitivity: 98 dB (1W/1m)

​Frequency Response: 30 Hz – 2.5 kHz

​Basket Material: Die-cast Aluminum