B&C Speaker 21SW152
4Ω
8ΩSubwoofer
21″ / 530 mm
Nominal diameter
32 Hz
Resonance
0.3
Q factor
95 dB
Sensitivity
± 15 mm
Linear excursion
4000 W
Program Power
- Parts Express
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.2
- dB
- Frequency response
- 30 - 1000
- Hz
- Resonance frequency (free air)
- fS
- 32.0
- Hz
- Mechanical quality factor
- QMS
- 7.00
- Electrical quality factor
- QES
- 0.31
- Total quality factor
- QTS
- 0.30
- Maximum linear excursion
- xmax
- 15.0
- mm
- Air volume displaced at xmax
- VD
- 2520
- cm³
- Power handling
- P
- 2000
- W
- Program power
- Pmax
- 4000
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.3
- Ω
- Inductance (1kHz)
- LE
- 1.5
- mH
- VC Diameter
- 153
- mm
- Winding height
- HVC
- 30
- mm
- Winding material
- Copper
- Former material
- Glass Fibre
- Flux density
- B
- 1.2
- T
- Force factor
- Bl
- 32.5
- N/A
- Motor constant
- Bl/√RE
- 17.9
- N/√W
- Air gap height
- HAG
- 12
- mm
- Material
- Neodymium Inside Slug
- Effective diameter
- 462
- mm
- Effective area
- SD
- 1680
- cm²
- Moving mass
- MMS
- 460
- g
- Moving mass (without air load)
- MMD
- 411.8
- g
- Material
- Waterproof Both Sides
- Stiffness
- KMS
- 20.0
- N/mm
- Compliance
- CMS
- 50
- µm/N
- Equivalent volume to the compliance
- VAS
- 200
- L
- Mechanical resistance
- RMS
- 13.21
- N·s/m
- Spider material
- Silicone
- Nominal diameter
- 21
- ″
- 530
- mm
- Overall diameter
- 547
- mm
- Baffle cutout diameter
- 508
- mm
- Overall depth
- 261
- mm
- Flange thickness
- 16
- mm
- Mounting depth
- 245
- mm
- Volume occupied by the driver
- 16.0
- L
- Net weight
- 18.5
- kg