Ciare CM087

Mid-range

3.5″ / 87 mm
Nominal diameter
122 Hz
Resonance
0.64
Q factor
86 dB
Sensitivity
± 1.5 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
86.1
dB
Frequency response
150 - 10000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
122
Hz
Mechanical quality factor
QMS
3.20
Electrical quality factor
QES
0.80
Total quality factor
QTS
0.64

Large signal parameters

Maximum linear excursion
xmax
1.5
mm
Air volume displaced at xmax
VD
5.3
cm³
Power handling
P
30
W
Program power
Pmax
90
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.14
mH
VC Diameter
20
mm
Winding height
HVC
5
mm
Former material
Aluminum

Magnet

Force factor
Bl
2.86
N/A
Motor constant
Bl/√RE
1.53
N/√W
Air gap height
HAG
4
mm
Material
Ferrite

Diaphragm

Effective diameter
67
mm
Effective area
SD
35
cm²
Moving mass
MMS
2.5
g
Moving mass (without air load)
MMD
2.3
g
Material
Cellulose fiber

Suspensions

Stiffness
KMS
1.43
N/mm
Compliance
CMS
700
µm/N
Equivalent volume to the compliance
VAS
1.2
L
Mechanical resistance
RMS
0.6
N·s/m
Surround material
Polyurethane

Dimensions

Nominal diameter
3.5
87
mm
Overall diameter
87
mm
Baffle cutout diameter
77
mm
Overall depth
41
mm
Flange thickness
5
mm
Mounting depth
36
mm
Volume occupied by the driver (estimated)
0.1
L
Net weight
0.33
kg
Frame material
Steel
Ciare CM087 SPL & Impedance
Ciare CM087 Dimensions

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