MONACOR SP-40

Full-range

4″ / 103 mm
Nominal diameter
80 Hz
Resonance
0.7
Q factor
84 dB
Sensitivity
± 2 mm
Linear excursion
16 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
83.7
dB
Frequency response
80 - 10000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
80.0
Hz
Mechanical quality factor
QMS
2.50
Electrical quality factor
QES
0.97
Total quality factor
QTS
0.70

Large signal parameters

Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
8
W
Program power
Pmax
16
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
0.2
mH
VC Diameter
26
mm
Winding material
Aluminium

Magnet

Force factor
Bl
4.33
N/A
Motor constant
Bl/√RE
1.7
N/√W
Diameter
70
mm
Weight
0.15
kg

Diaphragm

Effective diameter
84
mm
Effective area
SD
55
cm²
Moving mass
MMS
5.7
g
Moving mass (without air load)
MMD
5.4
g

Suspensions

Stiffness
KMS
1.61
N/mm
Compliance
CMS
620
µm/N
Equivalent volume to the compliance
VAS
2.6
L
Mechanical resistance
RMS
1.15
N·s/m

Dimensions

Nominal diameter
4
103 x 103
mm
Overall size
103 x 103
mm
Baffle cutout diameter
95
mm
Overall depth
55
mm
Flange thickness
4
mm
Mounting depth
51
mm
Volume occupied by the driver (estimated)
0.14
L
Net weight
0.46
kg
MONACOR SP-40 SPL & Impedance
MONACOR SP-40 Dimensions

Export this driver to a simulation software:

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SD
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