HELIX COMPOSE CB C100.2-S3

2 way

4″ / 100 mm
Nominal diameter
113 Hz
Resonance
0.87
Q factor
83 dB
Sensitivity
± 2.5 mm
Linear excursion
90 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
82.9
dB
Frequency response
100 - 22000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
113
Hz
Mechanical quality factor
QMS
4.97
Electrical quality factor
QES
1.05
Total quality factor
QTS
0.87

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
60
W
Program power
Pmax
90
W

Voice Coil

Nominal impedance
Z
3
Ω
DC resistance
RE
3.0
Ω
Inductance (1kHz, estimated)
LE
0.14
mH
VC Diameter
25
mm
Winding height
HVC
8.9
mm

Magnet

Force factor
Bl
3.9
N/A
Motor constant
Bl/√RE
2.25
N/√W

Diaphragm

Effective diameter
76
mm
Effective area
SD
45
cm²
Moving mass
MMS
7.2
g
Moving mass (without air load)
MMD
7
g

Suspensions

Stiffness
KMS
3.68
N/mm
Compliance
CMS
272
µm/N
Equivalent volume to the compliance
VAS
0.8
L
Mechanical resistance
RMS
1.04
N·s/m

Dimensions

Nominal diameter
4
100
mm
Overall diameter
99
mm
Baffle cutout diameter
90
mm
Mounting depth
49
mm
Volume occupied by the driver (estimated)
0.13
L

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