MONACOR SPX-20M

Full-range

2″ / 57 mm
Nominal diameter
157 Hz
Resonance
0.42
Q factor
84 dB
Sensitivity
± 0.5 mm
Linear excursion
30 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
83.8
dB
Frequency response
157 - 22000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
157
Hz
Mechanical quality factor
QMS
4.52
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.42

Large signal parameters

Maximum linear excursion
xmax
0.5
mm
Air volume displaced at xmax
VD
0.7
cm³
Power handling
P
15
W
Program power
Pmax
30
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.9
Ω
Inductance (1kHz)
LE
0.13
mH
VC Diameter
25
mm
Winding material
Kapton

Magnet

Force factor
Bl
4.5
N/A
Motor constant
Bl/√RE
1.71
N/√W
Diameter
39
mm

Diaphragm

Effective diameter
41
mm
Effective area
SD
13
cm²
Moving mass
MMS
1.3
g
Moving mass (without air load)
MMD
1.3
g

Suspensions

Stiffness
KMS
1.32
N/mm
Compliance
CMS
760
µm/N
Equivalent volume to the compliance
VAS
0.2
L
Mechanical resistance
RMS
0.28
N·s/m

Dimensions

Nominal diameter
2
57
mm
Overall diameter
57
mm
Baffle cutout diameter
52
mm
Overall depth
38
mm
Flange thickness
4
mm
Mounting depth
34
mm
Net weight
0.17
kg
MONACOR SPX-20M SPL & Impedance
MONACOR SPX-20M Dimensions

Export this driver to a simulation software:

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