B&C Speaker 18TBW100
4Ω
8ΩSubwoofer
Nominal diameter | 18″ / 460 mm |
Resonance | 33 Hz |
Q factor | 0.32 |
Sensitivity | 94.1 dB |
Linear excursion | ± 12 mm |
Program Power | 3000 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 94.1dB
- Frequency response 35 - 1000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 33Hz
- Mechanical quality factor QMS 6.23
- Electrical quality factor QES 0.34
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion xmax 12mm
- Air volume displaced at xmax VD 1452cm³
- Power handling P 1500W
- Program power Pmax 3000W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.2Ω
- Inductance (1kHz) LE 1.64mH
- VC Diameter 100mm
- Winding height HVC 31mm
- Winding material Copper
- Former material Glass Fibre
Magnet
- Flux density B 1.15T
- Force factor Bl 22.8N/A
- Motor constant Bl/√RE 12.7N/√W
- Air gap height HAG 15mm
- Material Ferrite
Diaphragm
- Effective diameter 393mm
- Effective area SD 1210cm²
- Moving mass MMS 268g
- Moving mass (without air load) MMD 239g
- Material Waterproof Both Sides
Suspensions
- Stiffness KMS 11.5N/mm
- Compliance CMS 87µm/N
- Equivalent volume to the compliance VAS 182L
- Mechanical resistance RMS 8.92N·s/m
- Spider material Silicone
Dimensions
- Nominal diameter 18″
- 460mm
- Overall diameter 460mm
- Baffle cutout diameter 422mm
- Overall depth 241mm
- Flange thickness 16mm
- Mounting depth 225mm
- Volume occupied by the driver 11L
- Net weight 15.4kg
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