Focal UTOPIA M 3.5 WM
Mid-range
3.5″ / 89 mm
Nominal diameter
105 Hz
Resonance
0.58
Q factor
84 dB
Sensitivity
± 2.5 mm
Linear excursion
100 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 83.7
- dB
- Frequency response
- 200 - 10000
- Hz
- Resonance frequency (free air)
- fS
- 105
- Hz
- Mechanical quality factor
- QMS
- 2.00
- Electrical quality factor
- QES
- 1.00
- Total quality factor
- QTS
- 0.58
- Maximum linear excursion
- xmax
- 2.5
- mm
- Air volume displaced at xmax
- VD
- 9.6
- cm³
- Power handling
- P
- 50
- W
- Program power
- Pmax
- 100
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.1
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.1
- mH
- VC Diameter
- 45
- mm
- Winding material
- Copper Clad Aluminium
- Former material
- Glass Fiber
- Force factor
- Bl
- 3.0
- N/A
- Motor constant
- Bl/√RE
- 1.7
- N/√W
- Diameter
- 42
- mm
- Height
- 4
- mm
- Effective diameter
- 70
- mm
- Effective area
- SD
- 39
- cm²
- Moving mass
- MMS
- 4
- g
- Moving mass (without air load)
- MMD
- 3.8
- g
- Material
- M-shape W
- Stiffness
- KMS
- 2.0
- N/mm
- Compliance
- CMS
- 500
- µm/N
- Equivalent volume to the compliance
- VAS
- 1
- L
- Mechanical resistance
- RMS
- 1.32
- N·s/m
- Surround material
- Butyl
- Nominal diameter
- 3.5
- ″
- 89
- mm
- Baffle cutout diameter
- 79
- mm
- Mounting depth
- 31
- mm
- Volume occupied by the driver (estimated)
- 0.1
- L
- Net weight
- 0.25
- kg