15″ / 381 mm
Nominal diameter
20 Hz
Resonance
0.62
Q factor
89 dB
Sensitivity
± 18 mm
Linear excursion
1000 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
89.1
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
20.4
Hz
Mechanical quality factor
QMS
6.00
Electrical quality factor
QES
0.69
Total quality factor
QTS
0.62
Large signal parameters
Maximum linear excursion
xmax
18.0
mm
Maximum excursion before damage
xlim
22.0
mm
Air volume displaced at xmax
VD
1494
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.33
mH
Magnet
Force factor
Bl
12.49
N/A
Motor constant
Bl/√RE
5.33
N/√W
Diaphragm
Effective diameter
325
mm
Effective area
SD
830
cm²
Moving mass
MMS
152
g
Moving mass (without air load)
MMD
135.4
g
Suspensions
Stiffness
KMS
2.5
N/mm
Compliance
CMS
400
µm/N
Equivalent volume to the compliance
VAS
387
L
Mechanical resistance
RMS
3.25
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Volume occupied by the driver (estimated)
4.3
L
Similar subwoofers to Acoustic Elegance IB15AU-8
15″Subwoofer
fS
20 Hz
SD
830 cm²
QTS
0.62
xmax
18.0 mm
SPL1W
88 dB
Bl/√RE
5.33
Pmax
1000 W
15″Subwoofer
fS
22 Hz
SD
800 cm²
QTS
0.69
xmax
18.1 mm
SPL1W
88 dB
Bl/√RE
5.39
Pmax
1500 W
18″Subwoofer
fS
18 Hz
SD
1218 cm²
QTS
0.57
xmax
18.0 mm
SPL1W
90 dB
Bl/√RE
6.76
Pmax
1000 W