Martin Audio Blackline S18

18’’  Powerful Passive Subwoofer

The compact Blackline S18+ sub-bass system has been designed to be used with Blackline F12 and F15 full-range systems to extend and increase the total low frequency output power. The S18 provides good mid-bass punch with extended sub-bass output from a direct radiating 18” (460mm) driver with a 4” (100mm) high temperature voice coil. 

• Type: Compact, vented sub bass system  
• Frequency Response: 40Hz-120Hz ± 3dB 
• Drivers: 18" (460mm) bass driver 
• Rated Power: 500W AES, 2000W peak 
• Recommended Amplifier: 400-1000W into 4 ohms 
• Sensitivity: 99dB 
• Maximum SPL: 124dB continuous, 130dB peak 
• Nominal Impedance: 8 ohms 
• Crossover: 120Hz active/passive
•  Enclosure: 150 litre, multi-laminate birch ply 
• Finish: Textured black paint 
• Protective Grille: Black perforated steel 
• Connectors: 2 x Neutrik NL4 
• Fittings: Top hat fitting 
• Dimensions: (W) 561mm x (H) 690mm x (D) 595mm
• Weight: 45kg