PHL audio 4031

Fe
NdU

Subwoofer

12″ / 300 mm
Nominal diameter
44 Hz
Resonance
0.27
Q factor
94 dB
Sensitivity
± 7.5 mm
Linear excursion
1000 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
94.4
dB
Frequency response
40 - 2000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
44.0
Hz
Mechanical quality factor
QMS
5.36
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.27

Large signal parameters

Maximum linear excursion
xmax
7.5
mm
Maximum excursion before damage
xlim
14.0
mm
Air volume displaced at xmax
VD
404
cm³
Power handling
P
500
W
Program power
Pmax
1000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
1.24
mH
VC Diameter
77
mm
Winding height
HVC
20
mm

Magnet

Force factor
Bl
20.5
N/A
Motor constant
Bl/√RE
8.66
N/√W
Air gap height
HAG
10
mm
Diameter
204
mm
Material
Ferrite

Diaphragm

Effective diameter
262
mm
Effective area
SD
539
cm²
Moving mass
MMS
78
g
Moving mass (without air load)
MMD
69.3
g

Suspensions

Stiffness
KMS
5.88
N/mm
Compliance
CMS
170
µm/N
Equivalent volume to the compliance
VAS
70
L
Mechanical resistance
RMS
4.02
N·s/m

Dimensions

Nominal diameter
12
300
mm
Overall diameter
307
mm
Baffle cutout diameter
282
mm
Overall depth
142
mm
Flange thickness
13
mm
Mounting depth
129
mm
Volume occupied by the driver
2.7
L
Net weight
8.9
kg
PHL audio 4031 Dimensions

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