Acoustic Elegance SBP15-8

4Ω
8Ω

Subwoofer

15″ / 381 mm
Nominal diameter
21 Hz
Resonance
0.43
Q factor
91 dB
Sensitivity
± 14 mm
Linear excursion
1000 W
Program Power
Acoustic Elegance SBP15-8 SubwooferAcoustic Elegance SBP15-8 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
91.1
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
21.3
Hz
Mechanical quality factor
QMS
5.35
Electrical quality factor
QES
0.47
Total quality factor
QTS
0.43

Large signal parameters

Maximum linear excursion
xmax
14.0
mm
Maximum excursion before damage
xlim
20.0
mm
Air volume displaced at xmax
VD
1197
cm³
Power handling
P
500
W
Program power
Pmax
1000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.3
mH

Magnet

Force factor
Bl
16.0
N/A
Motor constant
Bl/√RE
6.76
N/√W

Diaphragm

Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
160
g
Moving mass (without air load)
MMD
142.9
g

Suspensions

Stiffness
KMS
2.86
N/mm
Compliance
CMS
350
µm/N
Equivalent volume to the compliance
VAS
364
L
Mechanical resistance
RMS
4.0
N·s/m

Dimensions

Nominal diameter
15
″
381
mm
Volume occupied by the driver (estimated)
4.3
L
Impedance
Step response
Tone Burst

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