6.5″ / 174 mm
Nominal diameter
45 Hz
Resonance
0.42
Q factor
88 dB
Sensitivity
± 6 mm
Linear excursion
240 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.8
dB
Frequency response
40 - 4500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.4
Hz
Mechanical quality factor
QMS
5.21
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.42
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
74
cm³
Power handling
P
120
W
Program power
Pmax
240
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
0.48
mH
VC Diameter
38
mm
Winding height
HVC
6
mm
Magnet
Flux density
B
0.9
T
Force factor
Bl
7.02
N/A
Motor constant
Bl/√RE
2.84
N/√W
Weight
0.515
kg
Diaphragm
Effective diameter
125
mm
Effective area
SD
123
cm²
Moving mass
MMS
13
g
Moving mass (without air load)
MMD
11.9
g
Suspensions
Stiffness
KMS
1.06
N/mm
Compliance
CMS
945
µm/N
Equivalent volume to the compliance
VAS
20.2
L
Mechanical resistance
RMS
0.71
N·s/m
Dimensions
Nominal diameter
6.5
″
174
mm
Overall diameter
175
mm
Baffle cutout diameter
143
mm
Overall depth
78
mm
Volume occupied by the driver (estimated)
0.53
L
Net weight
1.6
kg
Frame material
Aluminium Die-Cast
Similar woofers to SICA 6,5 H 1,5 CP
6″Woofer
fS
45 Hz
SD
119 cm²
35 - 3000 Hz
QTS
0.44
xmax
3.5 mm
SPL1W
88 dB
Bl/√RE
2.42
Pmax
28 W
6.75″Mid-range
fS
39 Hz
SD
140 cm²
39 - 4500 Hz
QTS
0.37
xmax
5.5 mm
SPL1W
89 dB
Bl/√RE
3.0
Pmax
120 W
6.5″Woofer
fS
50 Hz
SD
140 cm²
50 - 5000 Hz
QTS
0.49
xmax
4.8 mm
SPL1W
88 dB
Bl/√RE
3.09
Pmax
60 W