Eighteen Sound 12W500

4Ω
8Ω

Woofer

12″ / 300 mm
Nominal diameter
49 Hz
Resonance
0.35
Q factor
97 dB
Sensitivity
± 4 mm
Linear excursion
500 W
Program Power
Eighteen Sound 12W500 WooferEighteen Sound 12W500 WooferEighteen Sound 12W500 Woofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
Discard
Apply
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.8
dB
Frequency response
50 - 6000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
49.0
Hz
Mechanical quality factor
QMS
6.10
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.35

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
212
cm³
Power handling
P
350
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
2.7
Ω
Inductance (1kHz)
LE
0.67
mH
VC Diameter
64
mm

Magnet

Force factor
Bl
9.6
N/A
Motor constant
Bl/√RE
5.84
N/√W

Diaphragm

Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
36.5
g
Moving mass (without air load)
MMD
27.7
g

Suspensions

Stiffness
KMS
3.46
N/mm
Compliance
CMS
289
µm/N
Equivalent volume to the compliance
VAS
101
L
Mechanical resistance
RMS
1.84
N·s/m

Dimensions

Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
141
mm
Flange thickness
16
mm
Mounting depth
125
mm
Volume occupied by the driver (estimated)
2.4
L
Net weight
5.2
kg
Impedance
SPL
Eighteen Sound 12W500 Impedance
Eighteen Sound 12W500 SPL
Eighteen Sound 12W500 Dimensions
DatasheetDatasheet

Export this driver to a simulation software:

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