Acoustic Elegance TD18H+4

4Ω
8Ω

Subwoofer

18″ / 457 mm
Nominal diameter
29 Hz
Resonance
0.22
Q factor
98 dB
Sensitivity
± 14 mm
Linear excursion
2000 W
Program Power
Acoustic Elegance TD18H+4 SubwooferAcoustic Elegance TD18H+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
98.1
dB
Frequency response
20 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
29.0
Hz
Mechanical quality factor
QMS
5.90
Electrical quality factor
QES
0.23
Total quality factor
QTS
0.22

Large signal parameters

Maximum linear excursion
xmax
14.0
mm
Maximum excursion before damage
xlim
25.0
mm
Air volume displaced at xmax
VD
1705
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
2.8
Ω
Inductance (1kHz)
LE
0.41
mH

Magnet

Force factor
Bl
19.13
N/A
Motor constant
Bl/√RE
11.4
N/√W

Diaphragm

Effective diameter
394
mm
Effective area
SD
1218
cm²
Moving mass
MMS
165
g
Moving mass (without air load)
MMD
135.7
g

Suspensions

Stiffness
KMS
5.26
N/mm
Compliance
CMS
190
µm/N
Equivalent volume to the compliance
VAS
390
L
Mechanical resistance
RMS
5.03
N·s/m

Dimensions

Nominal diameter
18
″
457
mm
Volume occupied by the driver (estimated)
6.9
L
Impedance
Step response
Tone Burst

Export this driver to a simulation software:

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Similar subwoofers to Acoustic Elegance TD18H+4

Oberton 18NSW700 Woofer
Oberton  18NSW7008 Ω
18″Woofer
fS
30 Hz
SD
1158 cm²
30 - 1000 Hz
QTS
0.24
xmax
13.0 mm
SPL1W
98 dB
Bl/√RE
11
Pmax
1400 W