MONACOR SP-45/4
4Ω
8ΩMid-range
3″ / 78 mm
Nominal diameter
120 Hz
Resonance
0.55
Q factor
87 dB
Sensitivity
± 0.75 mm
Linear excursion
40 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 87.2
- dB
- Frequency response
- 120 - 16000
- Hz
- Resonance frequency (free air)
- fS
- 120
- Hz
- Mechanical quality factor
- QMS
- 2.82
- Electrical quality factor
- QES
- 0.68
- Total quality factor
- QTS
- 0.55
- Maximum linear excursion
- xmax
- 0.75
- mm
- Air volume displaced at xmax
- VD
- 2.3
- cm³
- Power handling
- P
- 20
- W
- Program power
- Pmax
- 40
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.3
- Ω
- Inductance (1kHz)
- LE
- 0.1
- mH
- VC Diameter
- 19
- mm
- Winding material
- Aluminium
- Force factor
- Bl
- 2.4
- N/A
- Motor constant
- Bl/√RE
- 1.32
- N/√W
- Diameter
- 70
- mm
- Weight
- 0.15
- kg
- Effective diameter
- 63
- mm
- Effective area
- SD
- 31
- cm²
- Moving mass
- MMS
- 1.6
- g
- Moving mass (without air load)
- MMD
- 1.5
- g
- Stiffness
- KMS
- 0.91
- N/mm
- Compliance
- CMS
- 1100
- µm/N
- Equivalent volume to the compliance
- VAS
- 1.5
- L
- Mechanical resistance
- RMS
- 0.43
- N·s/m
- Nominal diameter
- 3
- ″
- 78 x 78
- mm
- Overall size
- 78 x 78
- mm
- Baffle cutout diameter
- 72
- mm
- Overall depth
- 43
- mm
- Flange thickness
- 0
- mm
- Mounting depth
- 43
- mm
- Volume occupied by the driver (estimated)
- 0.12
- L
- Net weight
- 0.412
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.jpg.webp)
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