Martin Audio SX218

Features

• Dual-driver, direct radiating subwoofer
• 2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
• Very high output capability
• Tour-grade plywood enclosure with flying inserts

Specifications

• TYPE: Dual-driver, direct radiating subwoofer
• FREQUENCY RESPONSE (1)    
  • 35Hz – 150Hz ±3dB,
  • -10dB @ 30Hz
     
• DRIVER: 2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
• RATED POWER: 2000W AES, 8000W peak
• SENSITIVITY: 105dB
• MAXIMUM SPL: 144dB
• NOMINAL IMPEDANCE: 2 x 8Ω
• DISPERSION (-6DB): Omnidirectional/or Cardioid (paired)
• ENCLOSURE: Multi-laminate birch/poplar ply
• FINISH: Durable Polyurea Coating
• PROTECTIVE GRILLE: Black perforated Zintec
• CONNECTORS: 2 x NL4 type
• PIN CONNECTIONS (INPUT): LF1: 1+, 1- LF2: 2+, 2-
• PINS CONNECTIONS (LINK): LF1: 1+, 1- LF2: 2+, 2-
• FITTINGS    
  • Two skids on base, with mating channels on top
  • 24 x M10 mounting points
  • 4 x bar handles, 2 on each side
  • 4 x fittings for optional transit cover
  • M20 Pole mount insert
  • 16 x M8 inserts for optional castors
     
• DIMENSIONS (INCL SKIDS)    
  • (W) 1093mm x (H) 537mm x (D) 792mm (920mm including castors)
  • (W) 43in x (H) 21.1in x (D) 31.2in (36.2in including castors)
     
• WEIGHT    
  • 98.5kg (217lbs) w/o castors
  • 102kg (225lbs) with castors