Scan-Speak 22W/8857T00
Woofer
8″ / 220 mm
Nominal diameter
23 Hz
Resonance
0.3
Q factor
87 dB
Sensitivity
± 9 mm
Linear excursion
200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.9
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
23.0
Hz
Mechanical quality factor
QMS
4.90
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Maximum excursion before damage
xlim
14.0
mm
Air volume displaced at xmax
VD
198
cm³
Power handling
P
80
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
0.35
mH
VC Diameter
50
mm
Winding height
HVC
24
mm
Magnet
Force factor
Bl
10.1
N/A
Motor constant
Bl/√RE
4.06
N/√W
Air gap height
HAG
6
mm
Material
Ferrite
Diaphragm
Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
37
g
Moving mass (without air load)
MMD
34.5
g
Material
Rigid Black Anodized Aluminium
Suspensions
Stiffness
KMS
0.78
N/mm
Compliance
CMS
1290
µm/N
Equivalent volume to the compliance
VAS
87.7
L
Mechanical resistance
RMS
1.09
N·s/m
Surround material
SBR Rubber
Dimensions
Nominal diameter
8
″
220
mm
Volume occupied by the driver (estimated)
1.5
L
Net weight
3.6
kg
Frame material
Aluminium
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SpeakerbenchSimilar woofers to Scan-Speak 22W/8857T00
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10″Woofer
fS
23 Hz
SD
346 cm²
23 - 6000 Hz
QTS
0.27
xmax
6.0 mm
SPL1W
87 dB
Bl/√RE
5.52
Pmax
200 W
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10″Woofer
fS
23 Hz
SD
346 cm²
23 - 6000 Hz
QTS
0.32
xmax
6.0 mm
SPL1W
87 dB
Bl/√RE
4.99
Pmax
200 W
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10″Subwoofer
fS
22 Hz
SD
363 cm²
20 - 1000 Hz
QTS
0.31
xmax
14.0 mm
SPL1W
87 dB
Bl/√RE
6.82
Pmax
500 W