P.Audio 15BM-300B v3

Low frequency

15″ / 381 mm
Nominal diameter
48 Hz
Resonance
0.4
Q factor
98 dB
Sensitivity
± 3.9 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
97.8
dB
Frequency response
45 - 3500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
48.0
Hz
Mechanical quality factor
QMS
5.39
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.40

Large signal parameters

Maximum linear excursion
xmax
3.9
mm
Air volume displaced at xmax
VD
334
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.44
mH
VC Diameter
76
mm
Winding height
HVC
16.8
mm
Winding material
CCA-W
Former material
Glass fiber

Magnet

Flux density
B
1.2
T
Force factor
Bl
19.19
N/A
Motor constant
Bl/√RE
8.04
N/√W
Air gap height
HAG
9
mm
Material
Ferrite

Diaphragm

Effective diameter
331
mm
Effective area
SD
855
cm²
Moving mass
MMS
92.2
g
Moving mass (without air load)
MMD
74.6
g
Material
Paper

Suspensions

Stiffness
KMS
8.4
N/mm
Compliance
CMS
119
µm/N
Equivalent volume to the compliance
VAS
123
L
Mechanical resistance
RMS
5.16
N·s/m
Surround material
Cloth
Spider material
Cotton (Single)

Dimensions

Nominal diameter
15
381
mm
Overall diameter
392
mm
Baffle cutout diameter
353
mm
Overall depth
167
mm
Flange thickness
16
mm
Mounting depth
151
mm
Volume occupied by the driver (estimated)
4.1
L
Net weight
8.0
kg
Frame material
Aluminium
P.Audio 15BM-300B v3 SPL & Impedance
P.Audio 15BM-300B v3 Dimensions

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