PowerBass XL-1240

Subwoofer

12″ / 305 mm
Nominal diameter
33 Hz
Resonance
0.57
Q factor
87 dB
Sensitivity
± 8.5 mm
Linear excursion
800 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
87.4
dB
Frequency response
33 - 450
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
3.73
Electrical quality factor
QES
0.64
Total quality factor
QTS
0.57

Large signal parameters

Maximum linear excursion
xmax
8.5
mm
Air volume displaced at xmax
VD
469
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz, estimated)
LE
1.12
mH
VC Diameter
51
mm

Magnet

Force factor
Bl
14.81
N/A
Motor constant
Bl/√RE
7.92
N/√W
Weight
5.27
kg

Diaphragm

Effective diameter
265
mm
Effective area
SD
552
cm²
Moving mass
MMS
171.9
g
Moving mass (without air load)
MMD
163.1
g
Material
Non Pressed Paper

Suspensions

Stiffness
KMS
7.83
N/mm
Compliance
CMS
128
µm/N
Equivalent volume to the compliance
VAS
55.2
L
Mechanical resistance
RMS
9.56
N·s/m

Dimensions

Nominal diameter
12
305
mm
Baffle cutout diameter
281
mm
Mounting depth
145
mm
Volume occupied by the driver (estimated)
2.4
L

Export this driver to a simulation software:

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Similar subwoofers to PowerBass XL-1240

PowerBass XL-1240D Subwoofer
12Subwoofer
fS
33 Hz
SD
552 cm²
33 - 450 Hz
QTS
0.57
xmax
8.5 mm
SPL1W
87 dB
Bl/√RE
7.57
Pmax
800 W