Dayton Audio Odeum Apollo 8N

Woofer

8″ / 210 mm
Nominal diameter
94 Hz
Resonance
0.32
Q factor
95 dB
Sensitivity
± 3.91 mm
Linear excursion
400 W
Program Power
Dayton Audio Apollo 8N WooferDayton Audio Apollo 8N WooferDayton Audio Apollo 8N Woofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
95.0
dB
Frequency response
75 - 5800
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
94.0
Hz
Mechanical quality factor
QMS
4.43
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
3.91
mm
Air volume displaced at xmax
VD
79
cm³
Power handling
P
200
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.17
mH
VC Diameter
51
mm
Winding material
Copper
Former material
Glass Fiber

Magnet

Force factor
Bl
14.41
N/A
Motor constant
Bl/√RE
5.88
N/√W
Material
Neodymium

Diaphragm

Effective diameter
160
mm
Effective area
SD
201
cm²
Moving mass
MMS
20.9
g
Moving mass (without air load)
MMD
18.7
g
Material
Coated Paper

Suspensions

Stiffness
KMS
7.3
N/mm
Compliance
CMS
137
µm/N
Equivalent volume to the compliance
VAS
8.8
L
Mechanical resistance
RMS
2.79
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
8
″
210
mm
Overall diameter
210
mm
Baffle cutout diameter
182
mm
Overall depth
87
mm
Volume occupied by the driver (estimated)
0.73
L
Frame material
Steel
Impedance
SPL
Dayton Audio Apollo 8N Impedance
Dayton Audio Apollo 8N SPL
DatasheetDatasheet

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