Wharfedale WHAR-DELTA X18 B 4 18″ Passive Subwoofer

The Wharfedale Pro Delta X18B is a high-power 18″ passive subwoofer engineered for professional sound reinforcement applications. Built with premium components and a rugged birch plywood cabinet, the Delta X18B delivers deep, punchy low frequencies ideal for live sound, clubs, and touring setups. Designed to operate at 4 Ohms, it pairs perfectly with Delta Series full-range tops and amplifiers to produce powerful, distortion-free bass performance.

Key Features:

• 18″ cast-frame low-frequency driver for deep, clean bass
• Continuous power handling: 1000 W RMS / 2000 W Program / 4000 W Peak
• Impedance: 4 Ω for maximum amplifier efficiency
• Frequency response: 30 Hz – 2 kHz
• SPL (1 W/1 m): 99 dB
• Max SPL: 135 dB
• High-strength 18 mm birch plywood construction with durable black Rhino Rock paint finish
• Dual NL4 speakON connectors for parallel or daisy-chain operation
• Recessed handles and steel grille for easy transport and protection
• Ideal companion for Delta X12, X15, and Typhon Series tops

Specifications:

• Configuration: Passive Subwoofer
• Driver: 18″ LF driver, 4″ voice coil
• Power (RMS / Program / Peak): 1000 W / 2000 W / 4000 W
• Nominal Impedance: 4 Ω
• Frequency Response: 30 Hz – 2 kHz
• Sensitivity: 99 dB (1 W/1 m)
• Max SPL: 135 dB
• Input Connectors: 2 × NL4 speakON (parallel)
• Enclosure: 18 mm birch plywood, Rhino Rock finish
• Grille: Steel
• Mounting: 35 mm pole mount