Eminence PF-400

Guitar Speaker

15″ / 381 mm
Nominal diameter
58 Hz
Resonance
0.5
Q factor
100 dB
Sensitivity
± 0.79 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
100.2
dB
Frequency response
60 - 3600
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
58.0
Hz
Mechanical quality factor
QMS
6.37
Electrical quality factor
QES
0.55
Total quality factor
QTS
0.50

Large signal parameters

Maximum linear excursion
xmax
0.79
mm
Air volume displaced at xmax
VD
70
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.5
Ω
Inductance (1kHz)
LE
0.46
mH
VC Diameter
102
mm
Winding material
Edge Wound Aluminum
Former material
Polyimide

Magnet

Force factor
Bl
18.33
N/A
Motor constant
Bl/√RE
6.72
N/√W
Air gap height
HAG
7.2
mm
Weight
3.09
kg
Material
Ferrite

Diaphragm

Effective diameter
337
mm
Effective area
SD
890
cm²
Moving mass
MMS
67
g
Moving mass (without air load)
MMD
48.8
g
Material
Paper

Suspensions

Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
121
L
Mechanical resistance
RMS
3.83
N·s/m
Surround material
Coth

Dimensions

Nominal diameter
15
381
mm
Overall diameter
388
mm
Baffle cutout diameter
357
mm
Overall depth
152
mm
Volume occupied by the driver
4.31
L
Net weight
10.25
kg
Frame material
Die-cast aluminum
Eminence PF-400 SPL & Impedance

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