P.Audio 8NX-65MB

NT
NX

Low frequency

8″ / 203 mm
Nominal diameter
74 Hz
Resonance
0.24
Q factor
95 dB
Sensitivity
± 3.75 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
94.5
dB
Frequency response
70 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
74.0
Hz
Mechanical quality factor
QMS
4.92
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.24

Large signal parameters

Maximum linear excursion
xmax
3.75
mm
Air volume displaced at xmax
VD
80
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
0.26
mH
VC Diameter
64
mm
Winding height
HVC
15.5
mm
Winding material
Flat aluminium wire
Former material
Kapton

Magnet

Flux density
B
1.3
T
Force factor
Bl
17.9
N/A
Motor constant
Bl/√RE
7.02
N/√W
Air gap height
HAG
8
mm
Material
Neodymium

Diaphragm

Effective diameter
168
mm
Effective area
SD
214
cm²
Moving mass
MMS
27.5
g
Moving mass (without air load)
MMD
25
g
Material
Waterproof Paper

Suspensions

Stiffness
KMS
6.02
N/mm
Compliance
CMS
166
µm/N
Equivalent volume to the compliance
VAS
10.7
L
Mechanical resistance
RMS
2.6
N·s/m
Surround material
Cloth
Spider material
Cotton

Dimensions

Nominal diameter
8
203
mm
Overall diameter
237
mm
Baffle cutout diameter
185
mm
Overall depth
103
mm
Flange thickness
14
mm
Mounting depth
89
mm
Volume occupied by the driver (estimated)
1.2
L
Net weight
3.1
kg
Frame material
Aluminium
P.Audio 8NX-65MB SPL & Impedance
P.Audio 8NX-65MB Dimensions

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