MONACOR SPM-100/8
Mid-range
4″ / 102 mm
Nominal diameter
75 Hz
Resonance
0.67
Q factor
85 dB
Sensitivity
± 1 mm
Linear excursion
50 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 85.2
- dB
- Frequency response
- 75 - 18000
- Hz
- Resonance frequency (free air)
- fS
- 75.0
- Hz
- Mechanical quality factor
- QMS
- 1.96
- Electrical quality factor
- QES
- 1.01
- Total quality factor
- QTS
- 0.67
- Maximum linear excursion
- xmax
- 1.0
- mm
- Air volume displaced at xmax
- VD
- 5.7
- cm³
- Power handling
- P
- 25
- W
- Program power
- Pmax
- 50
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 7.2
- Ω
- Inductance (1kHz)
- LE
- 0.4
- mH
- VC Diameter
- 20
- mm
- Winding material
- Aluminium
- Force factor
- Bl
- 4.1
- N/A
- Motor constant
- Bl/√RE
- 1.53
- N/√W
- Diameter
- 70
- mm
- Weight
- 0.22
- kg
- Effective diameter
- 85
- mm
- Effective area
- SD
- 57
- cm²
- Moving mass
- MMS
- 4.4
- g
- Moving mass (without air load)
- MMD
- 4.1
- g
- Stiffness
- KMS
- 1.25
- N/mm
- Compliance
- CMS
- 800
- µm/N
- Equivalent volume to the compliance
- VAS
- 4
- L
- Mechanical resistance
- RMS
- 1.06
- N·s/m
- Nominal diameter
- 4
- ″
- 102
- mm
- Overall diameter
- 102
- mm
- Baffle cutout diameter
- 94
- mm
- Overall depth
- 58
- mm
- Flange thickness
- 5
- mm
- Mounting depth
- 53
- mm
- Volume occupied by the driver (estimated)
- 0.15
- L
- Net weight
- 0.538
- kg