12″ / 300 mm
Nominal diameter
55 Hz
Resonance
0.33
Q factor
96 dB
Sensitivity
± 8 mm
Linear excursion
1200 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.1
dB
Frequency response
50 - 4600
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
5.80
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
425
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
16
Ω
DC resistance
RE
10.4
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
75
mm
Winding height
HVC
21
mm
Magnet
Force factor
Bl
23.5
N/A
Motor constant
Bl/√RE
7.29
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
55
g
Moving mass (without air load)
MMD
46.4
g
Material
Weather protected
Suspensions
Stiffness
KMS
6.58
N/mm
Compliance
CMS
152
µm/N
Equivalent volume to the compliance
VAS
61
L
Mechanical resistance
RMS
3.28
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
310
mm
Baffle cutout diameter
280
mm
Overall depth
148
mm
Flange thickness
11
mm
Mounting depth
137
mm
Volume occupied by the driver (estimated)
3.1
L
Net weight
7.5
kg
Similar subwoofers to Eighteen Sound 12W750 16Ω
12″Coaxial
fS
55 Hz
SD
540 cm²
50 - 20000 Hz
QTS
0.37
xmax
9.3 mm
SPL1W
96 dB
Bl/√RE
7.35
Pmax
800 W
12″Low frequency
fS
55 Hz
SD
531 cm²
55 - 3500 Hz
QTS
0.32
xmax
4.5 mm
SPL1W
96 dB
Bl/√RE
7.52
Pmax
1400 W
12″Low frequency
fS
55 Hz
SD
552 cm²
45 - 3000 Hz
QTS
0.34
xmax
3.9 mm
SPL1W
97 dB
Bl/√RE
7.27
Pmax
600 W