12″ / 322 mm
Nominal diameter
40 Hz
Resonance
0.46
Q factor
90 dB
Sensitivity
± 8 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
89.9
dB
Frequency response
40 - 900
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.1
Hz
Mechanical quality factor
QMS
4.89
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
412
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz, estimated)
LE
1.67
mH
VC Diameter
75
mm
Winding height
HVC
24
mm
Magnet
Flux density
B
1.0
T
Force factor
Bl
19.5
N/A
Motor constant
Bl/√RE
7.48
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
256
mm
Effective area
SD
515
cm²
Moving mass
MMS
111.6
g
Moving mass (without air load)
MMD
103.1
g
Suspensions
Stiffness
KMS
7.09
N/mm
Compliance
CMS
141
µm/N
Equivalent volume to the compliance
VAS
53
L
Mechanical resistance
RMS
5.75
N·s/m
Dimensions
Nominal diameter
12
″
322
mm
Overall diameter
317
mm
Overall depth
152
mm
Volume occupied by the driver (estimated)
3.2
L
Net weight
7.4
kg
Similar subwoofers to Fountek FW322 8ohm
12″Subwoofer
fS
39 Hz
SD
574 cm²
QTS
0.43
SPL1W
90 dB
Bl/√RE
7.86
Pmax
500 W
12″Subwoofer
fS
41 Hz
SD
531 cm²
40 - 500 Hz
QTS
0.41
xmax
11.5 mm
SPL1W
91 dB
Bl/√RE
7.36
Pmax
800 W
12″Subwoofer
fS
36 Hz
SD
491 cm²
35 - 2000 Hz
QTS
0.42
xmax
7.0 mm
SPL1W
90 dB
Bl/√RE
7.39
Pmax
800 W