B&C Speaker 8PE21
Mid-range
8″ / 200 mm
Nominal diameter
87 Hz
Resonance
0.19
Q factor
98 dB
Sensitivity
± 2.5 mm
Linear excursion
400 W
Program Power
- Parts Express
- $$$
- Amazon.com
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 97.8
- dB
- Frequency response
- 90 - 5000
- Hz
- Resonance frequency (free air)
- fS
- 87.0
- Hz
- Mechanical quality factor
- QMS
- 3.80
- Electrical quality factor
- QES
- 0.20
- Total quality factor
- QTS
- 0.19
- Maximum linear excursion
- xmax
- 2.5
- mm
- Air volume displaced at xmax
- VD
- 55
- cm³
- Power handling
- P
- 200
- W
- Program power
- Pmax
- 400
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.6
- Ω
- Inductance (1kHz)
- LE
- 0.5
- mH
- VC Diameter
- 51
- mm
- Winding height
- HVC
- 9
- mm
- Winding material
- Copper
- Former material
- Kapton
- Flux density
- B
- 1.25
- T
- Force factor
- Bl
- 16.6
- N/A
- Motor constant
- Bl/√RE
- 7.01
- N/√W
- Air gap height
- HAG
- 8
- mm
- Material
- Ferrite
- Effective diameter
- 167
- mm
- Effective area
- SD
- 220
- cm²
- Moving mass
- MMS
- 18
- g
- Moving mass (without air load)
- MMD
- 15.5
- g
- Stiffness
- KMS
- 5.38
- N/mm
- Compliance
- CMS
- 186
- µm/N
- Equivalent volume to the compliance
- VAS
- 13
- L
- Mechanical resistance
- RMS
- 2.59
- N·s/m
- Nominal diameter
- 8
- ″
- 200
- mm
- Overall diameter
- 225
- mm
- Baffle cutout diameter
- 187
- mm
- Overall depth
- 91
- mm
- Flange thickness
- 11
- mm
- Mounting depth
- 80
- mm
- Volume occupied by the driver
- 1.2
- L
- Net weight
- 4.25
- kg