BMS 18N862

Subwoofer

18″ / 458 mm
Nominal diameter
25 Hz
Resonance
0.34
Q factor
93 dB
Sensitivity
± 19 mm
Linear excursion
3000 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
93.1
dB
Frequency response
20 - 200
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
25.1
Hz
Mechanical quality factor
QMS
6.75
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.34

Large signal parameters

Maximum linear excursion
xmax
19.0
mm
Air volume displaced at xmax
VD
2316
cm³
Power handling
P
1500
W
Program power
Pmax
3000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.81
mH
VC Diameter
102
mm
Winding height
HVC
50
mm
Winding material
Copper

Magnet

Force factor
Bl
25.52
N/A
Motor constant
Bl/√RE
10.8
N/√W
Air gap height
HAG
12
mm
Material
Neodymium

Diaphragm

Effective diameter
394
mm
Effective area
SD
1219
cm²
Moving mass
MMS
267
g
Moving mass (without air load)
MMD
237.6
g

Suspensions

Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
312
L
Mechanical resistance
RMS
6.24
N·s/m

Dimensions

Nominal diameter
18
458
mm
Overall diameter
458
mm
Baffle cutout diameter
412
mm
Overall depth
250
mm
Volume occupied by the driver (estimated)
7.0
L
Net weight
10.5
kg
Frame material
Aluminum
BMS 18N862 Impedance
BMS 18N862 SPL & Distortion
BMS 18N862 Dimensions

Export this driver to a simulation software:

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Similar subwoofers to BMS 18N862

Fostex W400A-HR Woofer
15Woofer
fS
25 Hz
SD
820 cm²
25 - 2500 Hz
QTS
0.31
xmax
5.5 mm
SPL1W
93 dB
Bl/√RE
7.96
Pmax
200 W