Reckhorn D-165i
Subwoofer
6.5″ / 160 mm
Nominal diameter
28 Hz
Resonance
0.3
Q factor
83 dB
Sensitivity
160 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.0
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
5.69
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.30
Large signal parameters
Power handling
P
80
W
Program power
Pmax
160
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
38
mm
Winding height
HVC
24
mm
Magnet
Force factor
Bl
9.38
N/A
Motor constant
Bl/√RE
4.94
N/√W
Diaphragm
Effective diameter
130
mm
Effective area
SD
132
cm²
Moving mass
MMS
43
g
Moving mass (without air load)
MMD
41.8
g
Material
Black Anodized Aluminum
Suspensions
Stiffness
KMS
1.45
N/mm
Compliance
CMS
688
µm/N
Equivalent volume to the compliance
VAS
17
L
Mechanical resistance
RMS
1.33
N·s/m
Dimensions
Nominal diameter
6.5
″
160
mm
Overall diameter
175
mm
Baffle cutout diameter
149
mm
Overall depth
99
mm
Flange thickness
7
mm
Mounting depth
92
mm
Volume occupied by the driver (estimated)
0.78
L
Net weight
2.3
kg
Frame material
Aluminum
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fS
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SD
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SD
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xmax
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