Celestion NTR06-1705D
Low frequency
6.5″ / 165 mm
Nominal diameter
49 Hz
Resonance
0.38
Q factor
90 dB
Sensitivity
± 6 mm
Linear excursion
300 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
89.7
dB
Frequency response
70 - 7000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
49.0
Hz
Mechanical quality factor
QMS
6.12
Electrical quality factor
QES
0.40
Total quality factor
QTS
0.38
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
92
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.23
mH
VC Diameter
44
mm
Winding height
HVC
15
mm
Winding material
Copper clad aluminium
Former material
Polyimide
Magnet
Force factor
Bl
8.17
N/A
Motor constant
Bl/√RE
3.56
N/√W
Air gap height
HAG
6
mm
Material
Neodymium
Diaphragm
Effective diameter
140
mm
Effective area
SD
154
cm²
Moving mass
MMS
16.6
g
Moving mass (without air load)
MMD
15.1
g
Material
Kevlar loaded paper
Suspensions
Stiffness
KMS
1.56
N/mm
Compliance
CMS
640
µm/N
Equivalent volume to the compliance
VAS
21.4
L
Mechanical resistance
RMS
0.83
N·s/m
Surround material
Elastomer
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
189
mm
Baffle cutout diameter
150
mm
Overall depth
87
mm
Volume occupied by the driver (estimated)
0.43
L
Net weight
0.95
kg
Frame material
Cast aluminium
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