VOLT B251.8
Woofer
10″ / 250 mm
Nominal diameter
31 Hz
Resonance
0.36
Q factor
88 dB
Sensitivity
± 5 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.4
dB
Frequency response
24 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
31.0
Hz
Mechanical quality factor
QMS
1.82
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Maximum excursion before damage
xlim
12.5
mm
Air volume displaced at xmax
VD
162
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.94
mH
VC Diameter
38
mm
Winding height
HVC
19
mm
Winding material
Copper
Magnet
Force factor
Bl
11.74
N/A
Motor constant
Bl/√RE
4.87
N/√W
Air gap height
HAG
9.5
mm
Diameter
134
mm
Weight
3.6
kg
Diaphragm
Effective diameter
203
mm
Effective area
SD
323
cm²
Moving mass
MMS
53.7
g
Moving mass (without air load)
MMD
49.3
g
Suspensions
Stiffness
KMS
2.04
N/mm
Compliance
CMS
490
µm/N
Equivalent volume to the compliance
VAS
72.6
L
Mechanical resistance
RMS
5.74
N·s/m
Dimensions
Nominal diameter
10
″
250
mm
Overall diameter
261
mm
Baffle cutout diameter
253
mm
Overall depth
119
mm
Volume occupied by the driver
1.1
L
Net weight
4.9
kg
Frame material
Diecast Aluminium
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SpeakerbenchSimilar woofers to VOLT B251.8
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VISATON GF 200 - 2 x 4 Ohm2 x 4 Ω
8″Woofer
fS
30 Hz
SD
214 cm²
30 - 8000 Hz
QTS
0.34
xmax
6.0 mm
SPL1W
89 dB
Bl/√RE
3.82
Pmax
180 W