Ciare NDI6.38MR
Mid-range
6.5″ / 165 mm
Nominal diameter
150 Hz
Resonance
0.46
Q factor
94 dB
Sensitivity
± 3 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.6
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
150
Hz
Mechanical quality factor
QMS
3.00
Electrical quality factor
QES
0.54
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
44
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.8
Ω
Inductance (1kHz)
LE
1.0
mH
VC Diameter
38
mm
Winding height
HVC
9
mm
Former material
Kapton
Magnet
Force factor
Bl
10.5
N/A
Motor constant
Bl/√RE
4.79
N/√W
Air gap height
HAG
6
mm
Diaphragm
Effective diameter
137
mm
Effective area
SD
147
cm²
Moving mass
MMS
13.2
g
Moving mass (without air load)
MMD
11.9
g
Material
Doped cellulose fiber
Suspensions
Stiffness
KMS
11.63
N/mm
Compliance
CMS
86
µm/N
Equivalent volume to the compliance
VAS
2.5
L
Mechanical resistance
RMS
4.15
N·s/m
Surround material
Nomex Fabric
Spider material
Cotton fabric
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
162
mm
Baffle cutout diameter
145
mm
Overall depth
81
mm
Flange thickness
9
mm
Mounting depth
72
mm
Volume occupied by the driver (estimated)
0.46
L
Net weight
1.35
kg
Frame material
Aluminium
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6.5″Mid-range
fS
138 Hz
SD
132 cm²
150 - 6000 Hz
QTS
0.47
xmax
3.0 mm
SPL1W
93 dB
Bl/√RE
4.22
Pmax
400 W
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6.5″Mid-range
fS
140 Hz
SD
132 cm²
150 - 6000 Hz
QTS
0.40
xmax
2.5 mm
SPL1W
94 dB
Bl/√RE
4.73
Pmax
400 W