Dayton Audio Odeum Apollo 18F

Subwoofer

18″ / 462 mm
Nominal diameter
32 Hz
Resonance
0.4
Q factor
94 dB
Sensitivity
± 10.6 mm
Linear excursion
2400 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
94.2
dB
Frequency response
30 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
8.97
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.40

Large signal parameters

Maximum linear excursion
xmax
10.6
mm
Air volume displaced at xmax
VD
1272
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
2.25
mH
VC Diameter
102
mm
Winding material
Copper
Former material
Aluminum

Magnet

Force factor
Bl
24.44
N/A
Motor constant
Bl/√RE
9.59
N/√W
Material
Ferrite

Diaphragm

Effective diameter
391
mm
Effective area
SD
1200
cm²
Moving mass
MMS
193.6
g
Moving mass (without air load)
MMD
164.5
g
Material
Coated Paper

Suspensions

Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
288
L
Mechanical resistance
RMS
4.34
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
18
462
mm
Overall diameter
462
mm
Baffle cutout diameter
414
mm
Overall depth
193
mm
Volume occupied by the driver (estimated)
6.1
L
Frame material
Steel
Dayton Audio Apollo 18F Impedance
Dayton Audio Apollo 18F SPL

Export this driver to a simulation software:

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