EASTECH ASDFD1222-0400
Full-range
2.25″ / 57 mm
Nominal diameter
149 Hz
Resonance
0.81
Q factor
80 dB
Sensitivity
± 2.75 mm
Linear excursion
24 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 80.3
- dB
- Resonance frequency (free air)
- fS
- 149
- Hz
- Mechanical quality factor
- QMS
- 6.17
- Electrical quality factor
- QES
- 0.93
- Total quality factor
- QTS
- 0.81
- Maximum linear excursion
- xmax
- 2.75
- mm
- Air volume displaced at xmax
- VD
- 4.4
- cm³
- Power handling
- P
- 12
- W
- Program power
- Pmax
- 24
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.2
- Ω
- Inductance (1kHz)
- LE
- 0.04
- mH
- VC Diameter
- 19
- mm
- Winding height
- HVC
- 8.5
- mm
- Winding material
- Copper Clad Aluminium
- Former material
- Kapton
- Force factor
- Bl
- 2.7
- N/A
- Motor constant
- Bl/√RE
- 1.5
- N/√W
- Air gap height
- HAG
- 3
- mm
- Material
- Ferrite
- Effective diameter
- 45
- mm
- Effective area
- SD
- 16
- cm²
- Moving mass
- MMS
- 2.2
- g
- Moving mass (without air load)
- MMD
- 2.2
- g
- Material
- Paper
- Stiffness
- KMS
- 1.97
- N/mm
- Compliance
- CMS
- 509
- µm/N
- Equivalent volume to the compliance
- VAS
- 0.187
- L
- Mechanical resistance
- RMS
- 0.34
- N·s/m
- Surround material
- Rubber
- Nominal diameter
- 2.25
- ″
- 57
- mm
- Volume occupied by the driver (estimated)
- 0.14
- L
- Net weight
- 0.387
- kg
- Frame material
- Steel