Beyma 18PW1400Fe/S

Subwoofer

18″ / 460 mm
Nominal diameter
32 Hz
Resonance
0.27
Q factor
96 dB
Sensitivity
± 10 mm
Linear excursion
2800 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
95.8
dB
Frequency response
25 - 1800
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
10.20
Electrical quality factor
QES
0.28
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
10.0
mm
Maximum excursion before damage
xlim
55.0
mm
Air volume displaced at xmax
VD
1255
cm³
Power handling
P
1400
W
Program power
Pmax
2800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
102
mm
Winding height
HVC
25
mm

Magnet

Force factor
Bl
29.0
N/A
Motor constant
Bl/√RE
12.8
N/√W
Air gap height
HAG
12
mm

Diaphragm

Effective diameter
400
mm
Effective area
SD
1255
cm²
Moving mass
MMS
230
g
Moving mass (without air load)
MMD
199.6
g

Suspensions

Stiffness
KMS
9.71
N/mm
Compliance
CMS
103
µm/N
Equivalent volume to the compliance
VAS
229
L
Mechanical resistance
RMS
4.6
N·s/m

Dimensions

Nominal diameter
18
460
mm
Overall diameter
461
mm
Baffle cutout diameter
415
mm
Overall depth
207
mm
Volume occupied by the driver (estimated)
8.4
L
Net weight
16.9
kg
Beyma 18PW1400Fe/S SPL & Impedance
Beyma 18PW1400Fe/S Dimensions

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fS
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SD
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35 - 2000 Hz
QTS
0.29
xmax
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SPL1W
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Bl/√RE
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Pmax
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