Dayton Audio Odeum Apollo 6.5N

Woofer

6.5″ / 168 mm
Nominal diameter
103 Hz
Resonance
0.28
Q factor
93 dB
Sensitivity
± 3.77 mm
Linear excursion
400 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
92.7
dB
Frequency response
90 - 8000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
103
Hz
Mechanical quality factor
QMS
8.02
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.28

Large signal parameters

Maximum linear excursion
xmax
3.77
mm
Air volume displaced at xmax
VD
50
cm³
Power handling
P
200
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
1.29
mH
VC Diameter
51
mm
Winding material
Copper
Former material
Glass Fiber

Magnet

Force factor
Bl
14.94
N/A
Motor constant
Bl/√RE
6.05
N/√W
Material
Neodymium

Diaphragm

Effective diameter
130
mm
Effective area
SD
133
cm²
Moving mass
MMS
16.9
g
Moving mass (without air load)
MMD
15.8
g
Material
Coated Paper

Suspensions

Stiffness
KMS
7.09
N/mm
Compliance
CMS
141
µm/N
Equivalent volume to the compliance
VAS
3.5
L
Mechanical resistance
RMS
1.36
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
6.5
168
mm
Overall diameter
168
mm
Baffle cutout diameter
146
mm
Overall depth
80
mm
Volume occupied by the driver (estimated)
0.49
L
Frame material
Steel
Dayton Audio Apollo 6.5N Impedance
Dayton Audio Apollo 6.5N SPL

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