Dayton Audio Ultimax II UMII8-22
Subwoofer
8″ / 185 mm
Nominal diameter
46 Hz
Resonance
0.75
Q factor
81 dB
Sensitivity
± 18 mm
Linear excursion
800 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 81.3
- dB
- Frequency response
- 30 - 600
- Hz
- Resonance frequency (free air)
- fS
- 46.0
- Hz
- Mechanical quality factor
- QMS
- 3.10
- Electrical quality factor
- QES
- 0.99
- Total quality factor
- QTS
- 0.75
- Maximum linear excursion
- xmax
- 18.0
- mm
- Air volume displaced at xmax
- VD
- 360
- cm³
- Power handling
- P
- 400
- W
- Program power
- Pmax
- 800
- W
- Nominal impedance
- Z
- 2 x 2
- Ω
- DC resistance (in series)
- RE
- 3.9
- Ω
- Inductance (1kHz, in series)
- LE
- 0.75
- mH
- VC Diameter
- 64
- mm
- Force factor (in series)
- Bl
- 9.7
- N/A
- Motor constant
- Bl/√RE
- 4.91
- N/√W
- Material
- Ferrite
- Effective diameter
- 160
- mm
- Effective area
- SD
- 200
- cm²
- Moving mass
- MMS
- 82
- g
- Moving mass (without air load)
- MMD
- 80.1
- g
- Material
- Carbon Fiber
- Stiffness
- KMS
- 6.76
- N/mm
- Compliance
- CMS
- 148
- µm/N
- Equivalent volume to the compliance
- VAS
- 8.4
- L
- Mechanical resistance
- RMS
- 7.65
- N·s/m
- Surround material
- Rubber
- Nominal diameter
- 8
- ″
- 185
- mm
- Overall diameter
- 185
- mm
- Baffle cutout diameter
- 145
- mm
- Overall depth
- 144
- mm
- Volume occupied by the driver (estimated)
- 1.2
- L
- Frame material
- Cast Aluminium
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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