Ciare NDI8.50W
Woofer
8″ / 200 mm
Nominal diameter
81 Hz
Resonance
0.33
Q factor
94 dB
Sensitivity
± 4.5 mm
Linear excursion
450 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.3
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
81.0
Hz
Mechanical quality factor
QMS
3.50
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
96
cm³
Power handling
P
220
W
Program power
Pmax
450
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
50
mm
Winding height
HVC
12.7
mm
Former material
Aluminum
Magnet
Force factor
Bl
12.8
N/A
Motor constant
Bl/√RE
5.31
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
19.5
g
Moving mass (without air load)
MMD
17.2
g
Material
Doped cellulose fiber
Suspensions
Stiffness
KMS
5.18
N/mm
Compliance
CMS
193
µm/N
Equivalent volume to the compliance
VAS
13
L
Mechanical resistance
RMS
2.84
N·s/m
Surround material
Nomex Fabric
Spider material
Cotton fabric
Dimensions
Nominal diameter
8
″
200
mm
Overall diameter
208
mm
Baffle cutout diameter
185
mm
Overall depth
121
mm
Flange thickness
11
mm
Mounting depth
110
mm
Volume occupied by the driver (estimated)
0.98
L
Net weight
2.25
kg
Frame material
Aluminium
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SpeakerbenchSimilar woofers to Ciare NDI8.50W
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8″Coaxial
fS
76 Hz
SD
217 cm²
75 - 20000 Hz
QTS
0.30
xmax
4.9 mm
SPL1W
94 dB
Bl/√RE
5.88
Pmax
500 W