D.A.S. Audio 12P
Low frequency
12″ / 305 mm
Nominal diameter
42 Hz
Resonance
0.33
Q factor
95 dB
Sensitivity
± 6 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.9
dB
Frequency response
50 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
10.13
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
11.0
mm
Air volume displaced at xmax
VD
324
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz, estimated)
LE
1.04
mH
VC Diameter
77
mm
Winding height
HVC
15
mm
Winding material
Copper
Former material
Glass Fibre Reinforced Polymer
Magnet
Force factor
Bl
16.8
N/A
Motor constant
Bl/√RE
6.59
N/√W
Air gap height
HAG
7
mm
Material
Ferrite
Diaphragm
Effective diameter
262
mm
Effective area
SD
540
cm²
Moving mass
MMS
56
g
Moving mass (without air load)
MMD
47.3
g
Suspensions
Stiffness
KMS
3.94
N/mm
Compliance
CMS
254
µm/N
Equivalent volume to the compliance
VAS
105
L
Mechanical resistance
RMS
1.46
N·s/m
Surround material
Polycotton
Spider material
Polycotton
Dimensions
Nominal diameter
12
″
305
mm
Baffle cutout diameter
289
mm
Volume occupied by the driver (estimated)
2.4
L
Net weight
5.5
kg
Frame material
Injected Aluminum
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12″Coaxial
fS
42 Hz
SD
545 cm²
40 - 3200 Hz
QTS
0.30
xmax
7.5 mm
SPL1W
96 dB
Bl/√RE
6.71
Pmax
800 W
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fS
40 Hz
SD
850 cm²
40 - 2200 Hz
QTS
0.30
xmax
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SPL1W
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Bl/√RE
10
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fS
41 Hz
SD
855 cm²
35 - 2000 Hz
QTS
0.31
xmax
10.5 mm
SPL1W
95 dB
Bl/√RE
11
Pmax
2400 W