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
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
Former material
Glass Fiber
Magnet
Force factor
Bl
14.94
N/A
Motor constant
Bl/√RE
6.05
N/√W
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
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
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
Similar woofers to Dayton Audio Apollo 6.5N
6.5″Mid-range
fS
102 Hz
SD
132 cm²
140 - 7000 Hz
QTS
0.29
xmax
2.3 mm
SPL1W
93 dB
Bl/√RE
5.82
Pmax
350 W
6.5″Mid-range
fS
102 Hz
SD
129 cm²
100 - 4000 Hz
QTS
0.29
xmax
3.9 mm
SPL1W
93 dB
Bl/√RE
5.37
Pmax
500 W
6″Coaxial
fS
85 Hz
SD
123 cm²
80 - 20000 Hz
QTS
0.24
xmax
3.5 mm
SPL1W
92 dB
Bl/√RE
5.22
Pmax
400 W