accuton S220-6-221
Woofer
8″ / 220 mm
Nominal diameter
22 Hz
Resonance
0.37
Q factor
87 dB
Sensitivity
± 5 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.5
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
22.1
Hz
Mechanical quality factor
QMS
5.73
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
112
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
0.81
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Titanium
Magnet
Force factor
Bl
8.28
N/A
Motor constant
Bl/√RE
3.41
N/√W
Diameter
120
mm
Height
42
mm
Diaphragm
Effective diameter
169
mm
Effective area
SD
224
cm²
Moving mass
MMS
32.8
g
Moving mass (without air load)
MMD
30.3
g
Suspensions
Stiffness
KMS
0.63
N/mm
Compliance
CMS
1580
µm/N
Equivalent volume to the compliance
VAS
113
L
Mechanical resistance
RMS
0.79
N·s/m
Dimensions
Nominal diameter
8
″
220
mm
Overall diameter
220
mm
Baffle cutout diameter
191
mm
Overall depth
105
mm
Flange thickness
9
mm
Mounting depth
96
mm
Volume occupied by the driver (estimated)
1.0
L
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SpeakerbenchSimilar woofers to accuton S220-6-221
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