HELIX COMPOSE Ci7 M100FM-S3

Mid-range

4″ / 100 mm
Nominal diameter
85 Hz
Resonance
0.47
Q factor
87 dB
Sensitivity
± 1.3 mm
Linear excursion
150 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
86.6
dB
Frequency response
110 - 7000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
85.0
Hz
Mechanical quality factor
QMS
4.58
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.47

Large signal parameters

Maximum linear excursion
xmax
1.3
mm
Air volume displaced at xmax
VD
7.2
cm³
Power handling
P
100
W
Program power
Pmax
150
W

Voice Coil

Nominal impedance
Z
3
Ω
DC resistance
RE
3.0
Ω
Inductance (1kHz, estimated)
LE
0.12
mH
VC Diameter
25
mm
Winding height
HVC
5.5
mm

Magnet

Force factor
Bl
4.3
N/A
Motor constant
Bl/√RE
2.48
N/√W

Diaphragm

Effective diameter
84
mm
Effective area
SD
55
cm²
Moving mass
MMS
5.9
g
Moving mass (without air load)
MMD
5.6
g

Suspensions

Stiffness
KMS
1.7
N/mm
Compliance
CMS
590
µm/N
Equivalent volume to the compliance
VAS
2.5
L
Mechanical resistance
RMS
0.69
N·s/m

Dimensions

Nominal diameter
4
100
mm
Overall diameter
98
mm
Baffle cutout diameter
89
mm
Mounting depth
27
mm
Volume occupied by the driver (estimated)
0.13
L

Export this driver to a simulation software:

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