B&C Speaker 18RBX100 8Ω
4Ω
8Ω
Subwoofer
Nominal diameter | 18″ / 460 mm |
Resonance | 40 Hz |
Q factor | 0.34 |
Sensitivity | 95.4 dB |
Linear excursion | ± 10 mm |
Program Power | 2000 W |
Discontinued
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.4dB
- Frequency response 35 - 1000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 40Hz
- Mechanical quality factor QMS 7.30
- Electrical quality factor QES 0.36
- Total quality factor QTS 0.34
Large signal parameters
- Maximum linear excursion xmax 10mm
- Air volume displaced at xmax VD 1225cm³
- Power handling P 1000W
- Program power Pmax 2000W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.1Ω
- Inductance (1kHz) LE 1.5mH
- VC Diameter 100mm
- Winding height HVC 25mm
- Winding material Copper
- Former material Glass Fibre
Magnet
- Flux density B 1.1T
- Force factor Bl 25.1N/A
- Motor constant Bl/√RE 11.1N/√W
- Air gap height HAG 11mm
- Material Ferrite
Diaphragm
- Effective diameter 395mm
- Effective area SD 1225cm²
- Moving mass MMS 199g
- Moving mass (without air load) MMD 169g
- Material Waterproof
Suspensions
- Stiffness KMS 9.71N/mm
- Compliance CMS 103µm/N
- Equivalent volume to the compliance VAS 220L
- Mechanical resistance RMS 6.85N·s/m
- Spider material Double Silicone
Dimensions
- Nominal diameter 18″
- 460mm
- Overall diameter 460mm
- Baffle cutout diameter 422mm
- Overall depth 200mm
- Flange thickness 14mm
- Mounting depth 186mm
- Volume occupied by the driver 10.5L
- Net weight 12.3kg
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Export this driver to a simulation software:
Closed Box Simulator·





