15″ / 400 mm
Nominal diameter
23 Hz
Resonance
0.43
Q factor
95 dB
Sensitivity
± 5 mm
Linear excursion
240 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
95.2
dB
Frequency response
23 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
23.0
Hz
Mechanical quality factor
QMS
13.80
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.43
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
394
cm³
Power handling
P
120
W
Program power
Pmax
240
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz, estimated)
LE
1.16
mH
Magnet
Force factor
Bl
12.96
N/A
Motor constant
Bl/√RE
5.08
N/√W
Diaphragm
Effective diameter
317
mm
Effective area
SD
788
cm²
Moving mass
MMS
66
g
Moving mass (without air load)
MMD
49.5
g
Suspensions
Stiffness
KMS
2.0
N/mm
Compliance
CMS
500
µm/N
Equivalent volume to the compliance
VAS
440
L
Mechanical resistance
RMS
0.69
N·s/m
Dimensions
Nominal diameter
15
″
400
mm
Overall diameter
404
mm
Baffle cutout diameter
358
mm
Overall depth
215
mm
Flange thickness
10
mm
Mounting depth
205
mm
Volume occupied by the driver (estimated)
5.9
L
Similar subwoofers to SUPRAVOX 400 EXC
15″Woofer
fS
23 Hz
SD
788 cm²
23 - 4000 Hz
QTS
0.43
xmax
5.0 mm
SPL1W
95 dB
Bl/√RE
5.08
Pmax
240 W
15″Woofer
fS
27 Hz
SD
890 cm²
27 - 2500 Hz
QTS
0.45
xmax
7.9 mm
SPL1W
94 dB
Bl/√RE
5.98
Pmax
150 W
12″Woofer
fS
27 Hz
SD
539 cm²
QTS
0.44
xmax
6.3 mm
SPL1W
93 dB
Bl/√RE
3.78
Pmax
240 W