Audes 40W65-8
Woofer
6.5″ / 165 mm
Nominal diameter
43 Hz
Resonance
0.5
Q factor
86 dB
Sensitivity
± 4 mm
Linear excursion
120 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.5
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
2.84
Electrical quality factor
QES
0.61
Total quality factor
QTS
0.50
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
53
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
130
mm
Effective area
SD
133
cm²
Moving mass
MMS
20.4
g
Moving mass (without air load)
MMD
19.3
g
Suspensions
Stiffness
KMS
1.49
N/mm
Compliance
CMS
670
µm/N
Equivalent volume to the compliance
VAS
16.7
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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SpeakerbenchSimilar woofers to Audes 40W65-8
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PowerBass S-84D2 x 4 Ω
8″Subwoofer
fS
42 Hz
SD
206 cm²
42 - 800 Hz
QTS
0.46
xmax
7.0 mm
SPL1W
85 dB
Bl/√RE
4.98
Pmax
250 W
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