BMS speaker 18″ Neodymium 18N830 1100W 8Ohm

• 96 dB Sensitivity 1 W / 1 m
• 1.100 W Power Handling
• 4" Copper Sandwich Voice Coil for low Power Compression
• Neodymium Magnet System
• Double treated Cone for Water Protection
• Triple Aluminum demodulating Rings for ultra low Distortion
• Optimal for high Output Suwoofers

• General

  • Product type : Cone driver
  • Brand : B&C Speakers
  • Manufacturer reference : 18PS76

• Informations

  • Nominal impedance : 8 ohm
  • Dimensional category : 18 inch
  • Frequency coverage type : Sub, Low
  • Manufacturer sensitivity : 99 dB
  • Calculated sensitivity : 98.11 dB
  • Nominal power handling : 600 W
  • Bandwidth : 40÷2000 Hz

• Fundamental parameters

  • Sd : 1210 cm²
  • Mms : 149 gr
  • Le : 1.9 mH
  • Re : 5 ohm
  • BL : 25.8 T.m

• Small signal parameters

  • Fs : 39 Hz
  • Qes : 0.29
  • Qms : 6.1
  • Qts : 0.27
  • Vas : 207 L

• Datas

  • Xmax : ±7 mm
  • EBP : 134 Hz
  • Zmin : 6.5 ohm
  • Fs / Qts : 144 Hz
  • Vas * Qts² : 15.1 L
  • Efficiency : 4 %
  • Calculated efficiency : 4.07 %
  • Weight : ~10.7 kg

• Dimensions

  • Voice coil diameter : 3 inch
  • Winding depth : 24 mm
  • Gap height : 11 mm
  • Outside diameter : 460 mm
  • Baffle cutout diameter : 422 mm
  • Front thickness : 16 mm
  • Depth after front : 186 mm

• Shape & Materials

  • Front chape : Cylindrical
  • Magnet type : Ferrite
  • Basket masterial : Aluminium
  • Winding material : Copper
  • Voice coil former : Glass fiber

• 95 dB Sensitivity 1 W / 1 m
• 1500 W Power handling
• 4" Copper sandwich voice coil for low power compression
• Neodymium magnet system
• Double treated cone for water protection
• Triple aluminum demodulating rings for ultra low distortion
• Optimal for high output Subwoofers

• 95 dB Sensitivity 1 W / 1 m
• 1.200 W Power Handling
• 4" Copper Sandwich Voice Coil for low Power Compression
• Neodymium Magnet System
• Double treated Cone for Water Protection
• Triple Aluminum demodulating Rings for ultra low Distortion
• Optimal for high Output Subwoofers
• Leight Weight Carbon Fiber Diaphragm

Nominal Diameter     460 mm (18 in)
Overall Diameter     460 mm (18.11 in)
Bolt Circle Diameter     440 mm (17.32 in)
Baffle Cutout Diameter     424 mm (16.7 in)
Depth     202 mm (7.95 in)
Flange and Gasket Thickness     13.9 mm (0.55 in)
Net Weight     4.7 Kg (10.4 lb)
Shipping Box
(Single Carton Box)     536x536x293 mm (21.1x21.1x11.5 in)
Shipping Weight     6 Kg (13.2 lb)

Nominal Impedance     8 Ohm
Minimum Impedance     6 Ohm
Nominal Power Handling ***     600 W
Maximum Power Handling ****     1200 W
Sensitivity (1W/1m)     99 dB
Frequency Range     30÷3150 Hz
Voice Coil Diameter     77 mm (3 in)
Winding Material     Cu
Former Material     Glass Fiber
Winding Depth     22 mm (0.87 in)
Magnetic Gap Depth     10.5 mm (0.41 in)
Flux Density     1.2 T

Fs     30 Hz
Re     5.1 Ohm
Qes     0.34
Qms     8.68
Qts     0.33
Vas     404.2 dm^3 (14.27 ft^3)
Sd     1166 cm^2 (180.7 in^2)
Xmax *     9.25 mm
Xdamage **     17.5 mm
Mms     134.3 g
Bl     19.5 N/A
Le     1.35 mH
Mmd     112.6 g
Cms     0.21 mm/N
Rms     2.91 Kg/s
Eta Zero     3.1 %
EBP     88 Hz