B&C Speaker 18DS115
4Ω
8Ω
Subwoofer
18″ / 460 mm
Nominal diameter
30 Hz
Resonance
0.2
Q factor
95 dB
Sensitivity
± 16.5 mm
Linear excursion
3400 W
Program Power
- Amazon.com
- $$$
- Parts Express
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.8
- dB
- Frequency response
- 30 - 500
- Hz
- Resonance frequency (free air)
- fS
- 30.0
- Hz
- Mechanical quality factor
- QMS
- 4.30
- Electrical quality factor
- QES
- 0.21
- Total quality factor
- QTS
- 0.20
- Maximum linear excursion
- xmax
- 16.5
- mm
- Air volume displaced at xmax
- VD
- 1997
- cm³
- Power handling
- P
- 1700
- W
- Program power
- Pmax
- 3400
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.0
- Ω
- Inductance (1kHz)
- LE
- 3.85
- mH
- VC Diameter
- 116
- mm
- Winding height
- HVC
- 40
- mm
- Winding material
- Aluminium
- Former material
- Glass Fibre
- Flux density
- B
- 0.8
- T
- Force factor
- Bl
- 39.0
- N/A
- Motor constant
- Bl/√RE
- 17.4
- N/√W
- Air gap height
- HAG
- 14
- mm
- Material
- Neodymium Inside Slug
- Effective diameter
- 393
- mm
- Effective area
- SD
- 1210
- cm²
- Moving mass
- MMS
- 330
- g
- Moving mass (without air load)
- MMD
- 300.8
- g
- Material
- Waterproof Both Sides
- Stiffness
- KMS
- 12.05
- N/mm
- Compliance
- CMS
- 83
- µm/N
- Equivalent volume to the compliance
- VAS
- 168
- L
- Mechanical resistance
- RMS
- 14.47
- N·s/m
- Spider material
- Silicone
- Nominal diameter
- 18
- ″
- 460
- mm
- Overall diameter
- 460
- mm
- Baffle cutout diameter
- 422
- mm
- Overall depth
- 248
- mm
- Flange thickness
- 16
- mm
- Mounting depth
- 232
- mm
- Volume occupied by the driver
- 10.0
- L
- Net weight
- 12.55
- kg