P.Audio E12-300S v2

Low frequency

12″ / 305 mm
Nominal diameter
57 Hz
Resonance
0.4
Q factor
95 dB
Sensitivity
± 3.4 mm
Linear excursion
600 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
95.3
dB
Frequency response
50 - 3500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
57.0
Hz
Mechanical quality factor
QMS
7.65
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.40

Large signal parameters

Maximum linear excursion
xmax
3.4
mm
Air volume displaced at xmax
VD
181
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.55
mH
VC Diameter
76
mm
Winding height
HVC
16.8
mm
Winding material
CCA-W
Former material
Glass fiber

Magnet

Flux density
B
1.2
T
Force factor
Bl
17.12
N/A
Motor constant
Bl/√RE
7.23
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
256
mm
Effective area
SD
531
cm²
Moving mass
MMS
61.3
g
Moving mass (without air load)
MMD
52.6
g
Material
Paper

Suspensions

Stiffness
KMS
7.94
N/mm
Compliance
CMS
126
µm/N
Equivalent volume to the compliance
VAS
50.4
L
Mechanical resistance
RMS
2.87
N·s/m
Surround material
Cloth
Spider material
Cotton (Single)

Dimensions

Nominal diameter
12
305
mm
Overall diameter
312
mm
Baffle cutout diameter
278
mm
Overall depth
148
mm
Flange thickness
9
mm
Mounting depth
139
mm
Volume occupied by the driver (estimated)
3.0
L
Net weight
7.0
kg
Frame material
Steel
P.Audio E12-300S v2 SPL & Impedance
P.Audio E12-300S v2 Dimensions

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fS
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SD
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50 - 5000 Hz
QTS
0.40
xmax
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SPL1W
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Bl/√RE
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Pmax
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