Eighteen Sound 12W1300
Low frequency
12″ / 300 mm
Nominal diameter
50 Hz
Resonance
0.26
Q factor
95 dB
Sensitivity
± 7.5 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.9
dB
Frequency response
45 - 2500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
50.0
Hz
Mechanical quality factor
QMS
4.15
Electrical quality factor
QES
0.28
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
7.5
mm
Maximum excursion before damage
xlim
17.0
mm
Air volume displaced at xmax
VD
398
cm³
Power handling
P
700
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.9
mH
VC Diameter
100
mm
Winding material
Aluminum
Magnet
Force factor
Bl
20.0
N/A
Motor constant
Bl/√RE
8.77
N/√W
Material
Ferrite
Diaphragm
Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
72
g
Moving mass (without air load)
MMD
63.3
g
Material
Straight ribbed, carbon fiber cellulose
Suspensions
Stiffness
KMS
7.09
N/mm
Compliance
CMS
141
µm/N
Equivalent volume to the compliance
VAS
56
L
Mechanical resistance
RMS
5.45
N·s/m
Surround material
Triple roll, Polycotton
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
119
mm
Flange thickness
17
mm
Mounting depth
102
mm
Volume occupied by the driver (estimated)
3.3
L
Net weight
10.0
kg
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SD
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SD
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SD
540 cm²
45 - 2000 Hz
QTS
0.30
xmax
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