Eminence NSW4018-8

The Eminence NSW4018-8 is an 18" speaker chassis with a 4" copper voice coil for small to medium sized bass reflex cabinets. With a frequency response of 27 to 1300 Hz, an impedance of 8 ohms and a maximum power handling of 3200 watts and thanks to its neodymium magnet system, the Eminence NSW4018-8 offers extremely high power handling with first-class performance.

Eminence NSW4018-8 - technical data

• Nominal diameter: 18"
  
• Nominal diameter: 457 mm
• Voice coil: 4"
• Voice coil: 102 mm
• Total diameter: 460 mm
• Pitch circle diameter: 439.9 mm
• Cutout diameter: 421.6 mm
• Diameter of mounting holes: 7.1 mm
• Depth: 226.1 mm
• Nominal impedance: 8 Ohm
• Nominal load capacity: 1600 W
• Maximum load capacity: 3200 W
• Sensitivity (1 W / 1 m): 96.6 dB
• Frequency response: 27 - 1300 Hz
• Voice coil material: copper
• Magnet: Neodymium
  

Thiele & Small Parameter

• Fs (resonance frequency): 36 Hz
  
• Re (direct current resistance): 5.86 Ohm
• Qms (mechanical quality): 8,46
• Le (voice coil inductance): 1.54 mH
• Qes (electrical quality): 0,39
• Qts (total quality): 0,38
• Vas (equavolume): 164,49
• Mms (moving mass): 237 g
• BL (force factor): 28.24 Tesla/meter
  
• Xmax (maximum deflection): 15.21 mm
• Cms (flexibility of the suspension): 0.08 mm/N
• Sd (diaphragm area): 1217 cm²
• Weight: 9,48 kg