Dayton Audio DMA90-4
4Ω
8ΩFull-range
3.5″ / 89 mm
Nominal diameter
88 Hz
Resonance
0.45
Q factor
86 dB
Sensitivity
± 2.5 mm
Linear excursion
60 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.0
- dB
- Frequency response
- 85 - 20000
- Hz
- Resonance frequency (free air)
- fS
- 88.2
- Hz
- Mechanical quality factor
- QMS
- 2.50
- Electrical quality factor
- QES
- 0.56
- Total quality factor
- QTS
- 0.45
- Maximum linear excursion
- xmax
- 2.5
- mm
- Air volume displaced at xmax
- VD
- 9.6
- cm³
- Power handling
- P
- 30
- W
- Program power
- Pmax
- 60
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.8
- Ω
- Inductance (1kHz)
- LE
- 0.3
- mH
- VC Diameter
- 25
- mm
- Force factor
- Bl
- 3.5
- N/A
- Motor constant
- Bl/√RE
- 1.8
- N/√W
- Effective diameter
- 70
- mm
- Effective area
- SD
- 39
- cm²
- Moving mass
- MMS
- 3.2
- g
- Moving mass (without air load)
- MMD
- 3
- g
- Stiffness
- KMS
- 0.97
- N/mm
- Compliance
- CMS
- 1030
- µm/N
- Equivalent volume to the compliance
- VAS
- 2.27
- L
- Mechanical resistance
- RMS
- 0.71
- N·s/m
- Nominal diameter
- 3.5
- ″
- 89
- mm
- Volume occupied by the driver (estimated)
- 0.1
- L