P.Audio E18-600S v2

Low frequency

18″ / 457 mm
Nominal diameter
38 Hz
Resonance
0.44
Q factor
95 dB
Sensitivity
± 6.5 mm
Linear excursion
1200 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
35 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
38.0
Hz
Mechanical quality factor
QMS
10.41
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.44

Large signal parameters

Maximum linear excursion
xmax
6.5
mm
Air volume displaced at xmax
VD
796
cm³
Power handling
P
600
W
Program power
Pmax
1200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
1.11
mH
VC Diameter
99
mm
Winding height
HVC
25
mm
Winding material
Round Copper Wire
Former material
Glass fiber

Magnet

Flux density
B
1.1
T
Force factor
Bl
22.92
N/A
Motor constant
Bl/√RE
9.52
N/√W
Air gap height
HAG
12
mm
Material
Ferrite

Diaphragm

Effective diameter
394
mm
Effective area
SD
1225
cm²
Moving mass
MMS
176.4
g
Moving mass (without air load)
MMD
146.8
g
Material
Paper

Suspensions

Stiffness
KMS
10.0
N/mm
Compliance
CMS
100
µm/N
Equivalent volume to the compliance
VAS
212
L
Mechanical resistance
RMS
4.05
N·s/m
Surround material
Cloth
Spider material
Cotton (Single)

Dimensions

Nominal diameter
18
457
mm
Overall diameter
460
mm
Baffle cutout diameter
418
mm
Overall depth
205
mm
Flange thickness
12
mm
Mounting depth
193
mm
Volume occupied by the driver (estimated)
7.1
L
Net weight
13.0
kg
Frame material
Steel
P.Audio E18-600S v2 SPL & Impedance
P.Audio E18-600S v2 Dimensions

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