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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.
- 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 (18.0 in)
- Nominal impedance 8 Ω
- Minimum impedance 6.2 Ω
- Nominal power handling 1000 W
- Continuous power handling 2000 W
- Sensitivity (1W/1m) 97.0 dB
- Frequency range 35 - 1000 Hz
- Voice coil diameter 100 mm (4.0 in)
- Winding material Copper
- Former material Glass Fibre
- Winding depth 25 mm (1.0 in)
- Magnetic gap depth 11 mm (0.43 in)
- Flux density 1.1 T
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 140.0 dm3 (4.94 ft3)
- Recommended tuning 40 Hz
Parameters
- Fs 35 Hz
- Re 5.1 Ω
- Qes 0.36
- Qms 7.3
- Qts 0.34
- Vas 220.0 dm3 (7.77 ft3)
- Sd 1225.0 cm2 (189.88 in2)
- η₀ 2.2 %
- Xmax 10.0 mm
- Xvar 13.0 mm
- Mms 199 g
- Bl 25.1 Txm
- Le 1.5 mH
- EBP 97 Hz
Mounting and Shipping Info
- Overall diameter 460 mm (18.11 in)
- Bolt circle diameter 440 mm (17.32 in)
- Baffle cutout diameter 422.0 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 12.3 kg (27.12 lb)
- Shipping units 1
- Shipping weight 13.7 kg (30.2 lb)
- Shipping box 500x500x250 mm (19.69x19.69x9.84 in)
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Our database of parts includes a wide range of products, and in many cases offers cost effective alternatives for repair. Alternatives are loosely grouped into three types:
Original - Usually an exact match to the original product, and just the 'standard' part from the factory which gets rebadged by manufacturer with their own brand and part number. Occasionally, there are subtle tweaks made from the standard part, but its virtually impossible for us to determine this. If we have listed the part as Original, it means we are confident the performance is the same.Aftermarket - Aftermarket parts often become available from factories in the far east once the original part is no longer manufactured. They are intended to be a close match, and provide a cost-effective alternative.
Equivalent - These are alternative options, which provide very similar performance, but are not the same as the original. In some cases the performance may actually be improved. We have used both our own experience, and feedback from customers in generating list of alternatives. Alternatives like this are useful when the original part is no longer made, there is no aftermarket option, so the only choice is to upgrade with the nearest current equivalent product.