JBL JRX218S - 1400W 18-inch Passive Direct-Radiation Subwoofer with 4-Ohm Impedance in Black Finish

The JBL Professional JRX218S is a 1400W 18-inch passive direct-radiation subwoofer designed to deliver powerful low-frequency performance in live sound and music playback applications. This compact subwoofer is built around a robust JBL 18-inch woofer with a stamped steel frame and a 3-inch voice coil, offering exceptional efficiency and durability. Rated at 350 watts continuous and 1400 watts peak power, the JRX218S is capable of producing deep bass with a maximum SPL of 133 dB, making it an ideal addition to full-range speaker systems for extended low-end response.

The rugged enclosure is crafted from 19 mm MDF with mechanically fastened joints, ensuring acoustic superiority and long-lasting reliability. Covered in black carpet and featuring a durable 18-gauge perforated steel grille, the JRX218S is designed to withstand the rigors of live performances while maintaining a professional appearance. A cast aluminum 35 mm pole mount receptacle allows for convenient integration with mid-high speaker cabinets, while non-resonant steel handles provide easy transport. With dual Neutrik Speakon connectors and compact dimensions, the JRX218S is a versatile and reliable solution for sound reinforcement systems.

Features

• 1400W 18-inch passive direct-radiation subwoofer for extended low-frequency performance
• JBL 18-inch woofer with stamped steel frame and 3-inch voice coil for superior power handling
• Rated at 350 watts continuous and 1400 watts peak power for robust output
• Frequency response of 54 Hz - 250 Hz and sensitivity of 98 dB for clear, powerful bass
• Maximum SPL of 133 dB peak for high-output performance
• Nominal impedance of 4 Ohm for efficient power delivery
• Rugged 19 mm MDF enclosure with glued and mechanically fastened joints for durability
• 18-gauge powder-coated steel grille protects components from damage
• Dual Neutrik Speakon NL-4 connectors for flexible connectivity
• Top-mounted cast aluminum 35 mm pole mount for use with mid-high cabinets
• Non-resonant steel handles for easy transport
• Compact dimensions of 23.8 x 20.0 x 21.7 inches and a net weight of 71 lbs

Specifications

System

• System Type: 18" compact subwoofer
• Frequency Range (-10 dB): 35 Hz - 250 Hz
• Frequency Response (±3 dB): 54 Hz - 250 Hz
• Sensitivity (1w/1m): 98 dB
• Nominal Impedance: 4 Ohm
• Rated Maximum SPL: 133 dB peak, @1m (3.3 ft)
• Power Capacity: 350 watts
• Peak Power Capacity: 1400 watts
• Recommended Amplifier Power: 350-700 watts @ 4 Ohm

Transducers

• LF Driver: M118-4

Enclosure

• Input Connectors: Neutrik Speakon NL-4 (x2); parallel
• Enclosure Construction: 19 mm (3/4 in) MDF (Medium Density Fiberboard) with glued and mechanically fastened joint detail; covered in black carpet
• Grille: 18-gauge, powder-coated steel
• Optional Accessory: SS3-BK
• Dimensions: 23.8 x 20.0 x 21.7 inches
• Net Weight: 71 lbs
• Shipping Weight: 81 lbs