Audes 40W69-8
Woofer
6.5″ / 165 mm
Nominal diameter
38 Hz
Resonance
0.38
Q factor
87 dB
Sensitivity
± 4 mm
Linear excursion
120 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.7
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
38.0
Hz
Mechanical quality factor
QMS
2.48
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.38
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
55
cm³
Power handling
P
75
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.8
mH
VC Diameter
40
mm
Winding height
HVC
14
mm
Magnet
Force factor
Bl
8.0
N/A
Motor constant
Bl/√RE
3.16
N/√W
Air gap height
HAG
6
mm
Weight
0.58
kg
Diaphragm
Effective diameter
132
mm
Effective area
SD
137
cm²
Moving mass
MMS
18.1
g
Moving mass (without air load)
MMD
16.9
g
Suspensions
Stiffness
KMS
1.04
N/mm
Compliance
CMS
960
µm/N
Equivalent volume to the compliance
VAS
25.6
L
Mechanical resistance
RMS
1.95
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
0.74
L
Net weight
1.8
kg
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8″Woofer
fS
40 Hz
SD
126 cm²
30 - 3000 Hz
QTS
0.34
xmax
7.0 mm
SPL1W
87 dB
Bl/√RE
2.79
Pmax
250 W