MONACOR SPH-145HQ

Mid-range

5.5″ / 145 mm
Nominal diameter
52 Hz
Resonance
0.44
Q factor
87 dB
Sensitivity
± 3.5 mm
Linear excursion
100 W
Program Power
MONACOR SPH-145HQ Mid-rangeMONACOR SPH-145HQ Mid-range
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
52 - 6000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
52.0
Hz
Mechanical quality factor
QMS
3.07
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.44

Large signal parameters

Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
28
cm³
Power handling
P
50
W
Program power
Pmax
100
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.53
mH
VC Diameter
25
mm
Winding material
Aluminium

Magnet

Force factor
Bl
5.33
N/A
Motor constant
Bl/√RE
2.21
N/√W
Diameter
72
mm
Weight
0.23
kg

Diaphragm

Effective diameter
101
mm
Effective area
SD
80
cm²
Moving mass
MMS
7.6
g
Moving mass (without air load)
MMD
7
g

Suspensions

Stiffness
KMS
0.95
N/mm
Compliance
CMS
1050
µm/N
Equivalent volume to the compliance
VAS
9.4
L
Mechanical resistance
RMS
0.81
N·s/m

Dimensions

Nominal diameter
5.5
″
145
mm
Overall diameter
145
mm
Baffle cutout diameter
119
mm
Overall depth
66
mm
Flange thickness
6
mm
Mounting depth
60
mm
Volume occupied by the driver (estimated)
0.26
L
Net weight
0.739
kg
SPL & Impedance
MONACOR SPH-145HQ SPL & Impedance
MONACOR SPH-145HQ Dimensions
DatasheetDatasheet

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