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
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 83.7
- dB
- Frequency response
- 80 - 10000
- Hz
- 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
- 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
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.5
- Ω
- Inductance (1kHz)
- LE
- 0.2
- mH
- VC Diameter
- 26
- mm
- Winding material
- Aluminium
- Force factor
- Bl
- 4.33
- N/A
- Motor constant
- Bl/√RE
- 1.7
- N/√W
- Diameter
- 70
- mm
- Weight
- 0.15
- kg
- Effective diameter
- 84
- mm
- Effective area
- SD
- 55
- cm²
- Moving mass
- MMS
- 5.7
- g
- Moving mass (without air load)
- MMD
- 5.4
- g
- 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
- 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