18RBX100
The new B&C 18RBX100 anchors our ferrite subwoofer line, and features an all new FEA optimized motor structure. The 25mm high, 4” (100mm) diameter copper wire voice coil is combined with a laminated double silicone spider, water resistant curvilinear cone and triple roll surround, for even more excursion and linearity.
The corrosion resistant motor structure incorporates an aluminum demodulation ring that effectively controls inductive rise as well as harmonic and intermodulation distortion. This subwoofer can be used for a wide variety of applications, including compact vented enclosures as small as 120 litres.
Features
2000 W continuous program power capacity
100 mm (4 in) copper voice coil
35 - 1000 Hz response
97 dB sensitivity
Aluminium demodulating ring allows a very low distortion figure
Double silicone spider with optimized compliance
Specifications
Nominal Diameter
460 mm (18 in)
Nominal Impedance
4 Ω
Minimum Impedance
4.5 Ω
Nominal Power Handling
1000 W
Continuous Power Handling
2000 W
Sensitivity
97 dB
Frequency Range
35 Hz - 1000 Hz
Voice Coil Diameter
100 mm (4 in)
Winding Material
Copper
Former Material
Glass Fibre
Winding Depth
25 mm (1 in)
Magnetic Gap Depth
11 mm (0.43 in)
Flux Density
1.1 T
Woofer Cone Treatment
TWP Waterproof Both Sides
Parameters
Fs
42 Hz
Re
3.5 Ω
Qes
0.41
Qms
8
Qts
0.4
Vas
136 dm³ (4.8 ft³)
Sd
1225 cm² (189.88 sq²)
η0
2.5 %
Xmax
10 mm
Xvar
13 mm
Mms
210 g
Bl
22 Tm
Le
1.2 mH
EBP
102 Hz
Design
Surround Shape
Triple Roll
Cone Shape
Curvilinear
Magnet Material
Ferrite
Spider
Double Silicone
Pole Design
T-Pole
Woofer Cone Treatment
TWP Waterproof Both Sides
Recommended Enclosure
140 dm³ (4.94 ft³)
Recommended Tuning
40 Hz
Mounting and Shipping Info
Overall Diameter
460 mm (18.11 in)
Bolt Circle Diameter
440 mm (17.32 in)
Baffle Cutout Diameter
422 mm (16.61 in)
Depth
200 mm (7.87 in)
Flange and Gasket Thickness
14 mm (0.55 in)
Air Volume Occupied by Driver
10.5 dm³ (0.37 ft³)
Net Weight
12.05 kg (26.57 lb)
Shipping Units
1 pcs
Shipping Weight
13.65 kg (30.09 lb)
Shipping Box
500x495x275 mm (19.69x19.49x10.83 in)
Service Kit
lf Recone Kit
RCK18RBX1004
Cone
Gasket
Centering Shims