5.5″ / 140 mm
Nominal diameter
49 Hz
Resonance
0.37
Q factor
85 dB
Sensitivity
± 4.5 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
85.2
dB
Frequency response
48 - 5500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
48.5
Hz
Mechanical quality factor
QMS
4.15
Electrical quality factor
QES
0.41
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
35
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
0.53
mH
VC Diameter
38
mm
Winding height
HVC
6
mm
Magnet
Flux density
B
0.98
T
Force factor
Bl
7.4
N/A
Motor constant
Bl/√RE
3.0
N/√W
Weight
0.515
kg
Diaphragm
Effective diameter
100
mm
Effective area
SD
79
cm²
Moving mass
MMS
12
g
Moving mass (without air load)
MMD
11.4
g
Suspensions
Stiffness
KMS
1.12
N/mm
Compliance
CMS
897
µm/N
Equivalent volume to the compliance
VAS
7.8
L
Mechanical resistance
RMS
0.88
N·s/m
Dimensions
Nominal diameter
5.5
″
140
mm
Overall diameter
148
mm
Baffle cutout diameter
113
mm
Overall depth
72
mm
Volume occupied by the driver (estimated)
0.43
L
Net weight
1.5
kg
Frame material
Aluminium Die-Cast
Similar speaker drivers to SICA 5,5 H 1,5 CP
5″Woofer
fS
49 Hz
SD
90 cm²
QTS
0.38
xmax
3.0 mm
SPL1W
85 dB
Bl/√RE
3.03
Pmax
300 W
5″Woofer
fS
52 Hz
SD
75 cm²
51 - 9000 Hz
QTS
0.38
xmax
4.9 mm
SPL1W
85 dB
Bl/√RE
2.56
Pmax
100 W
3.5″Woofer
fS
53 Hz
SD
75 cm²
50 - 7000 Hz
QTS
0.39
xmax
4.9 mm
SPL1W
85 dB
Bl/√RE
2.56
Pmax
100 W