11″ / 280 mm
Nominal diameter
22 Hz
Resonance
0.31
Q factor
87 dB
Sensitivity
± 7.5 mm
Linear excursion
500 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.4
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
22.0
Hz
Mechanical quality factor
QMS
5.81
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.31
Large signal parameters
Maximum linear excursion
xmax
7.5
mm
Maximum excursion before damage
xlim
28.0
mm
Air volume displaced at xmax
VD
272
cm³
Power handling
P
200
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz)
LE
0.55
mH
VC Diameter
75
mm
Winding height
HVC
23
mm
Former material
Titanium
Magnet
Force factor
Bl
14.9
N/A
Motor constant
Bl/√RE
5.94
N/√W
Air gap height
HAG
8
mm
Material
Ferrite
Diaphragm
Effective diameter
215
mm
Effective area
SD
363
cm²
Moving mass
MMS
84
g
Moving mass (without air load)
MMD
78.8
g
Material
Paper Sandwich
Suspensions
Stiffness
KMS
1.61
N/mm
Compliance
CMS
620
µm/N
Equivalent volume to the compliance
VAS
116
L
Mechanical resistance
RMS
2.0
N·s/m
Dimensions
Nominal diameter
11
″
280
mm
Volume occupied by the driver (estimated)
3.3
L
Net weight
7.5
kg
Frame material
Aluminium
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Scan-Speak 28W/8878T01
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10″Subwoofer
fS
23 Hz
SD
327 cm²
20 - 2000 Hz
QTS
0.30
xmax
9.4 mm
SPL1W
88 dB
Bl/√RE
5.88
Pmax
380 W
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12″Subwoofer
fS
23 Hz
SD
499 cm²
22 - 300 Hz
QTS
0.37
xmax
11.0 mm
SPL1W
87 dB
Bl/√RE
7.66
Pmax
600 W
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