BMS 18N830v²

Subwoofer

18″ / 458 mm
Nominal diameter
31 Hz
Resonance
0.37
Q factor
95 dB
Sensitivity
± 8 mm
Linear excursion
2200 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
94.5
dB
Frequency response
20 - 200
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
31.0
Hz
Mechanical quality factor
QMS
6.00
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.37

Large signal parameters

Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
970
cm³
Power handling
P
1100
W
Program power
Pmax
2200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
4.8
Ω
Inductance (1kHz)
LE
0.77
mH
VC Diameter
102
mm
Winding height
HVC
26
mm
Winding material
Copper

Magnet

Force factor
Bl
22.4
N/A
Motor constant
Bl/√RE
10.2
N/√W
Air gap height
HAG
10
mm
Material
Neodymium

Diaphragm

Effective diameter
393
mm
Effective area
SD
1212
cm²
Moving mass
MMS
210
g
Moving mass (without air load)
MMD
180.8
g

Suspensions

Stiffness
KMS
8.0
N/mm
Compliance
CMS
125
µm/N
Equivalent volume to the compliance
VAS
262
L
Mechanical resistance
RMS
6.82
N·s/m

Dimensions

Nominal diameter
18
458
mm
Overall diameter
458
mm
Baffle cutout diameter
414
mm
Overall depth
228
mm
Volume occupied by the driver (estimated)
5.4
L
Net weight
7.72
kg
Frame material
Cast Aluminum
BMS 18N830v² Impedance
BMS 18N830v² SPL & Distortion
BMS 18N830v² Dimensions

Export this driver to a simulation software:

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