Eminence PF-350

Guitar Speaker

12″ / 305 mm
Nominal diameter
63 Hz
Resonance
0.42
Q factor
99 dB
Sensitivity
± 0.79 mm
Linear excursion
700 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
98.7
dB
Frequency response
65 - 3500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
63.0
Hz
Mechanical quality factor
QMS
8.48
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.42

Large signal parameters

Maximum linear excursion
xmax
0.79
mm
Air volume displaced at xmax
VD
43
cm³
Power handling
P
350
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.4
Ω
Inductance (1kHz)
LE
0.4
mH
VC Diameter
102
mm
Winding material
Edge Wound Aluminum
Former material
Polyimide

Magnet

Force factor
Bl
16.73
N/A
Motor constant
Bl/√RE
6.15
N/√W
Air gap height
HAG
7.2
mm
Weight
3.09
kg
Material
Ferrite

Diaphragm

Effective diameter
264
mm
Effective area
SD
545
cm²
Moving mass
MMS
42
g
Moving mass (without air load)
MMD
33.1
g

Suspensions

Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
61.9
L
Mechanical resistance
RMS
1.96
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
12
305
mm
Overall diameter
312
mm
Overall depth
127
mm
Volume occupied by the driver
2.9
L
Net weight
9.75
kg
Frame material
Die-cast aluminum
Eminence PF-350 SPL & Impedance

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