P.Audio EX18-1000S

Low frequency

18″ / 457 mm
Nominal diameter
38 Hz
Resonance
0.61
Q factor
94 dB
Sensitivity
± 5.25 mm
Linear excursion
2000 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
93.9
dB
Frequency response
35 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
38.0
Hz
Mechanical quality factor
QMS
8.64
Electrical quality factor
QES
0.65
Total quality factor
QTS
0.61

Large signal parameters

Maximum linear excursion
xmax
5.25
mm
Air volume displaced at xmax
VD
643
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.87
mH
VC Diameter
99
mm
Winding height
HVC
25.5
mm
Winding material
CCAR
Former material
Glass fiber

Magnet

Flux density
B
1.0
T
Force factor
Bl
20.12
N/A
Motor constant
Bl/√RE
8.35
N/√W
Air gap height
HAG
15
mm
Material
Ferrite

Diaphragm

Effective diameter
396
mm
Effective area
SD
1225
cm²
Moving mass
MMS
189.6
g
Moving mass (without air load)
MMD
159.9
g
Material
Paper

Suspensions

Stiffness
KMS
11.11
N/mm
Compliance
CMS
90
µm/N
Equivalent volume to the compliance
VAS
191
L
Mechanical resistance
RMS
5.24
N·s/m
Surround material
Cloth
Spider material
Cotton (Double)

Dimensions

Nominal diameter
18
457
mm
Overall diameter
460
mm
Baffle cutout diameter
418
mm
Overall depth
212
mm
Flange thickness
12
mm
Mounting depth
200
mm
Volume occupied by the driver (estimated)
7.2
L
Net weight
13.0
kg
Frame material
Steel
P.Audio EX18-1000S SPL & Impedance
P.Audio EX18-1000S Dimensions

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