12″ / 305 mm
Nominal diameter
55 Hz
Resonance
0.32
Q factor
96 dB
Sensitivity
± 4.5 mm
Linear excursion
1400 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.4
dB
Frequency response
55 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
9.07
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
239
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.9
Ω
Inductance (1kHz)
LE
0.56
mH
VC Diameter
89
mm
Winding height
HVC
19
mm
Winding material
Flat aluminium wire
Magnet
Flux density
B
1.2
T
Force factor
Bl
19.76
N/A
Motor constant
Bl/√RE
7.52
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
263
mm
Effective area
SD
531
cm²
Moving mass
MMS
58.5
g
Moving mass (without air load)
MMD
49.8
g
Suspensions
Stiffness
KMS
6.85
N/mm
Compliance
CMS
146
µm/N
Equivalent volume to the compliance
VAS
58.5
L
Mechanical resistance
RMS
2.23
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
314
mm
Baffle cutout diameter
283
mm
Overall depth
164
mm
Flange thickness
15
mm
Mounting depth
149
mm
Volume occupied by the driver (estimated)
2.8
L
Net weight
5.8
kg
Similar speaker drivers to P.Audio 12NT-88MB
12″Subwoofer
fS
55 Hz
SD
531 cm²
50 - 4600 Hz
QTS
0.33
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
7.29
Pmax
1200 W
12″Coaxial
fS
55 Hz
SD
540 cm²
50 - 20000 Hz
QTS
0.37
xmax
9.3 mm
SPL1W
96 dB
Bl/√RE
7.35
Pmax
800 W
12″Low frequency
fS
52 Hz
SD
531 cm²
50 - 5000 Hz
QTS
0.34
xmax
4.8 mm
SPL1W
96 dB
Bl/√RE
7.16
Pmax
1000 W