P.Audio C15-400B v2

Low frequency

15″ / 381 mm
Nominal diameter
42 Hz
Resonance
0.55
Q factor
95 dB
Sensitivity
± 3.25 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
95.2
dB
Frequency response
55 - 2000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
5.09
Electrical quality factor
QES
0.61
Total quality factor
QTS
0.55

Large signal parameters

Maximum linear excursion
xmax
3.25
mm
Air volume displaced at xmax
VD
278
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
0.35
mH
VC Diameter
76
mm
Winding height
HVC
18.5
mm
Winding material
AL-W
Former material
Glass fiber

Magnet

Flux density
B
1.1
T
Force factor
Bl
15.55
N/A
Motor constant
Bl/√RE
6.69
N/√W
Air gap height
HAG
12
mm
Material
Ferrite

Diaphragm

Effective diameter
332
mm
Effective area
SD
855
cm²
Moving mass
MMS
103
g
Moving mass (without air load)
MMD
85.6
g
Material
Paper

Suspensions

Stiffness
KMS
7.3
N/mm
Compliance
CMS
137
µm/N
Equivalent volume to the compliance
VAS
142
L
Mechanical resistance
RMS
5.4
N·s/m
Surround material
Cloth
Spider material
Cotton (Single)

Dimensions

Nominal diameter
15
381
mm
Overall diameter
386
mm
Baffle cutout diameter
353
mm
Overall depth
184
mm
Flange thickness
16
mm
Mounting depth
168
mm
Volume occupied by the driver (estimated)
5.0
L
Net weight
10.1
kg
Frame material
Aluminium
P.Audio C15-400B v2 SPL & Impedance
P.Audio C15-400B v2 Dimensions

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