Scan-Speak 21W/8555-10
Woofer
8″ / 210 mm
Nominal diameter
20 Hz
Resonance
0.31
Q factor
87 dB
Sensitivity
± 6.5 mm
Linear excursion
160 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.7
- dB
- Frequency response
- 20 - 2500
- Hz
- Resonance frequency (free air)
- fS
- 20.0
- Hz
- Mechanical quality factor
- QMS
- 4.50
- Electrical quality factor
- QES
- 0.33
- Total quality factor
- QTS
- 0.31
- Maximum linear excursion
- xmax
- 6.5
- mm
- Maximum excursion before damage
- xlim
- 12.0
- mm
- Air volume displaced at xmax
- VD
- 143
- cm³
- Power handling
- P
- 100
- W
- Program power
- Pmax
- 160
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.5
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.63
- mH
- VC Diameter
- 42
- mm
- Winding height
- HVC
- 19
- mm
- Force factor
- Bl
- 8.2
- N/A
- Motor constant
- Bl/√RE
- 3.5
- N/√W
- Air gap height
- HAG
- 6
- mm
- Effective diameter
- 167
- mm
- Effective area
- SD
- 220
- cm²
- Moving mass
- MMS
- 32
- g
- Moving mass (without air load)
- MMD
- 29.6
- g
- Material
- Paper/Carbon Fibre
- Stiffness
- KMS
- 0.51
- N/mm
- Compliance
- CMS
- 1980
- µm/N
- Equivalent volume to the compliance
- VAS
- 134
- L
- Mechanical resistance
- RMS
- 0.89
- N·s/m
- Surround material
- SBR Rubber
- Nominal diameter
- 8
- ″
- 210
- mm
- Volume occupied by the driver
- 0.64
- L
- Net weight
- 2.2
- kg
- Frame material
- Die cast Aluminium
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.jpg.webp)
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