Eighteen Sound 10NMB500
Low frequency
10″ / 260 mm
Nominal diameter
67 Hz
Resonance
0.32
Q factor
99 dB
Sensitivity
± 2.5 mm
Linear excursion
320 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
99.4
dB
Frequency response
70 - 6500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
67.0
Hz
Mechanical quality factor
QMS
2.73
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
2.5
mm
Maximum excursion before damage
xlim
9.0
mm
Air volume displaced at xmax
VD
87
cm³
Power handling
P
250
W
Program power
Pmax
320
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.2
mH
VC Diameter
51
mm
Winding material
Copper
Magnet
Force factor
Bl
11.0
N/A
Motor constant
Bl/√RE
4.82
N/√W
Material
Neodymium
Diaphragm
Effective diameter
210
mm
Effective area
SD
346
cm²
Moving mass
MMS
20
g
Moving mass (without air load)
MMD
15.3
g
Material
Curvilinear profile high damping water resistant treated cellulose
Suspensions
Stiffness
KMS
3.53
N/mm
Compliance
CMS
283
µm/N
Equivalent volume to the compliance
VAS
48.1
L
Mechanical resistance
RMS
3.08
N·s/m
Surround material
Triple-roll, Polycotton
Dimensions
Nominal diameter
10
″
260
mm
Overall diameter
260
mm
Baffle cutout diameter
232
mm
Overall depth
122
mm
Flange thickness
15
mm
Mounting depth
107
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
1.9
kg
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SD
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60 - 5000 Hz
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xmax
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SD
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SD
531 cm²
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QTS
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xmax
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SPL1W
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