Acoustic Elegance TD12S-4

4Ω
8Ω

Subwoofer

12″ / 305 mm
Nominal diameter
32 Hz
Resonance
0.34
Q factor
93 dB
Sensitivity
± 14 mm
Linear excursion
1000 W
Program Power
Acoustic Elegance TD12S-4 SubwooferAcoustic Elegance TD12S-4 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
92.9
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
31.5
Hz
Mechanical quality factor
QMS
3.16
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.34

Large signal parameters

Maximum linear excursion
xmax
14.0
mm
Maximum excursion before damage
xlim
18.0
mm
Air volume displaced at xmax
VD
742
cm³
Power handling
P
500
W
Program power
Pmax
1000
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.3
mH

Magnet

Force factor
Bl
10.8
N/A
Motor constant
Bl/√RE
5.77
N/√W

Diaphragm

Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
64
g
Moving mass (without air load)
MMD
55.5
g

Suspensions

Stiffness
KMS
2.5
N/mm
Compliance
CMS
400
µm/N
Equivalent volume to the compliance
VAS
160
L
Mechanical resistance
RMS
4.0
N·s/m

Dimensions

Nominal diameter
12
″
305
mm
Volume occupied by the driver (estimated)
2.4
L
Impedance
Step response
Tone Burst

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