B&C Speakers 18DS115 - 4Ω

Subwoofer di ricambio 18", 4Ω, 1700/3400w, 97dB, 30Hz, 30‐500Hz, 116x40mm, Aluminium

• 3400 W continuous program power capacity
• 116 mm (4.5 in) four layer aluminum voice coil
• 30 - 500 Hz response
• 97 dB sensitivity
• Double silicone spider with optimized compliance
• Ventilated voice coil gap for reduced power compression
• Aluminium demodulating ring for very low distortion

SPECIFICATIONS

• Nominal Diameter  460 mm (18.0 in)
• Nominal Impedance  4 Ω
• Minimum Impedance  4.5 Ω
• Nominal Power Handling  1700 W 
• Continuous Power Handling  3400 W
• Sensitivity  97.0 dB
• Frequency Range  30 - 500 Hz
• Voice Coil Diameter  116 mm (4.5 in)
• Winding Material  Aluminium
• Former Material  Glass Fibre
• Winding Depth  40.0 mm (1.57 in)
• Magnetic Gap Depth  14.0 mm (0.55 in)
• Flux Density  0.8 T

DESIGN

• Surround Shape  Triple Roll
• Cone Shape  Radial
• Magnet Material  Neodymium Inside Slug
• Spider  Double Silicone
• Pole Design  T-Pole
• Woofer Cone Treatment  TWP Waterproof Both Sides
• Recommended Enclosure  100.0 dm3 (3.53 ft 3)
• Recommended Tuning  40 Hz

PARAMETERS

• Resonance Frequency  30 Hz
• Re  3.3 Ω
• Qes  0.18
• Qms  4.75
• Qts  0.17
• Vas  177.0 dm3 (6.25 ft 3)
• Sd  1210.0 cm2 (187.6 in 2)
• η₀  2.2 %
• Xmax  16.5 mm
• Xvar  14.0 mm
• Mms  348.0 g
• Bl  34.0 Txm
• Le  2.8 mH
• EBP  166 Hz

MOUNTING AND SHIPPING INFO

• Overall Diameter  460 mm (18.0 in)
• Bolt Circle Diameter  440 mm (17.32 in)
• Baffle Cutout Diameter  422.0 mm (16.6 in)
• Depth  248 mm (9.76 in)
• Flange and Gasket Thickness  16 mm (0.62 in)
• Air Volume Occupied by Driver  10.0 dm3 (0.35 ft 3)
• Net Weight  12.0 kg (26.46 lb)
• Shipping Units  1
• Shipping Weight  13.6 kg (29.98 lb)
• Shipping Box  500x495x275 mm (19.69x19.49x10.83 in)