D.A.S. Audio 15P

Low frequency

15″ / 381 mm
Nominal diameter
40 Hz
Resonance
0.42
Q factor
97 dB
Sensitivity
± 6 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
97.0
dB
Frequency response
30 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
6.85
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.42

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
11.0
mm
Air volume displaced at xmax
VD
516
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz, estimated)
LE
1.18
mH
VC Diameter
77
mm
Winding height
HVC
15
mm
Winding material
Copper
Former material
Glass Fibre Reinforced Polymer

Magnet

Force factor
Bl
15.9
N/A
Motor constant
Bl/√RE
6.29
N/√W
Air gap height
HAG
7
mm
Material
Ferrite

Diaphragm

Effective diameter
331
mm
Effective area
SD
860
cm²
Moving mass
MMS
70
g
Moving mass (without air load)
MMD
52.8
g

Suspensions

Stiffness
KMS
4.51
N/mm
Compliance
CMS
222
µm/N
Equivalent volume to the compliance
VAS
233
L
Mechanical resistance
RMS
2.57
N·s/m
Surround material
Polycotton
Spider material
Polycotton

Dimensions

Nominal diameter
15
381
mm
Baffle cutout diameter
359
mm
Volume occupied by the driver (estimated)
4.3
L
Frame material
Injected Aluminum
D.A.S. Audio 15P Impedance
D.A.S. Audio 15P SPL
D.A.S. Audio 15P Distortion

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