P.Audio 15NT-115XB

Low frequency

15″ / 381 mm
Nominal diameter
37 Hz
Resonance
0.26
Q factor
95 dB
Sensitivity
± 9.75 mm
Linear excursion
3200 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
35 - 2000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
37.0
Hz
Mechanical quality factor
QMS
7.80
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26

Large signal parameters

Maximum linear excursion
xmax
9.75
mm
Air volume displaced at xmax
VD
834
cm³
Power handling
P
1600
W
Program power
Pmax
3200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
0.97
mH
VC Diameter
114
mm
Winding height
HVC
33
mm
Winding material
Copper
Former material
Glass fiber

Magnet

Flux density
B
1.2
T
Force factor
Bl
27.81
N/A
Motor constant
Bl/√RE
12.3
N/√W
Air gap height
HAG
13.5
mm
Material
Neodymium

Diaphragm

Effective diameter
332
mm
Effective area
SD
855
cm²
Moving mass
MMS
178.7
g
Moving mass (without air load)
MMD
161.3
g
Material
Waterproof Paper

Suspensions

Stiffness
KMS
9.9
N/mm
Compliance
CMS
101
µm/N
Equivalent volume to the compliance
VAS
105
L
Mechanical resistance
RMS
5.33
N·s/m
Surround material
Cloth
Spider material
Cotton (Double silicone)

Dimensions

Nominal diameter
15
381
mm
Overall diameter
386
mm
Baffle cutout diameter
355
mm
Overall depth
206
mm
Flange thickness
18
mm
Mounting depth
188
mm
Volume occupied by the driver (estimated)
5.8
L
Net weight
11.3
kg
Frame material
Aluminium
P.Audio 15NT-115XB SPL & Impedance
P.Audio 15NT-115XB Dimensions

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