Precision Devices PD.154NR1

Mid Bass

15″ / 381 mm
Nominal diameter
46 Hz
Resonance
0.4
Q factor
97 dB
Sensitivity
± 8.5 mm
Linear excursion
1800 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
96.6
dB
Frequency response
45 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
46.0
Hz
Mechanical quality factor
QMS
7.00
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.40

Large signal parameters

Maximum linear excursion
xmax
8.5
mm
Air volume displaced at xmax
VD
763
cm³
Power handling
P
900
W
Program power
Pmax
1800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
1.73
mH
VC Diameter
102
mm
Winding height
HVC
22
mm
Winding material
Copper Clad Aluminium
Former material
Glass Fibre

Magnet

Flux density
B
1.25
T
Force factor
Bl
18.5
N/A
Motor constant
Bl/√RE
7.49
N/√W
Air gap height
HAG
11
mm
Material
Neodymium

Diaphragm

Effective diameter
338
mm
Effective area
SD
897
cm²
Moving mass
MMS
84
g
Moving mass (without air load)
MMD
62.7
g
Material
Paper

Suspensions

Stiffness
KMS
7.25
N/mm
Compliance
CMS
138
µm/N
Equivalent volume to the compliance
VAS
158
L
Mechanical resistance
RMS
3.47
N·s/m

Dimensions

Nominal diameter
15
381
mm
Overall diameter
474
mm
Baffle cutout diameter
415
mm
Overall depth
210
mm
Flange thickness
14
mm
Mounting depth
196
mm
Volume occupied by the driver (estimated)
5.4
L
Net weight
8.0
kg
Precision Devices PD.154NR1 Impedance
Precision Devices PD.154NR1 SPL

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