Dayton Audio Ultimax II UMII18-22
Subwoofer
18″ / 427 mm
Nominal diameter
22 Hz
Resonance
0.53
Q factor
88 dB
Sensitivity
± 28 mm
Linear excursion
2400 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 87.5
- dB
- Frequency response
- 20 - 500
- Hz
- Resonance frequency (free air)
- fS
- 22.0
- Hz
- Mechanical quality factor
- QMS
- 2.53
- Electrical quality factor
- QES
- 0.67
- Total quality factor
- QTS
- 0.53
- Maximum linear excursion
- xmax
- 28.0
- mm
- Air volume displaced at xmax
- VD
- 3315
- cm³
- Power handling
- P
- 1200
- W
- Program power
- Pmax
- 2400
- W
- Nominal impedance
- Z
- 2 x 2
- Ω
- DC resistance (in series)
- RE
- 4.2
- Ω
- Inductance (1kHz, in series)
- LE
- 1.15
- mH
- VC Diameter
- 76
- mm
- Force factor (in series)
- Bl
- 19.2
- N/A
- Motor constant
- Bl/√RE
- 9.37
- N/√W
- Material
- Ferrite
- Effective diameter
- 388
- mm
- Effective area
- SD
- 1184
- cm²
- Moving mass
- MMS
- 420
- g
- Moving mass (without air load)
- MMD
- 393.4
- g
- Material
- Carbon Fiber
- Stiffness
- KMS
- 8.07
- N/mm
- Compliance
- CMS
- 124
- µm/N
- Equivalent volume to the compliance
- VAS
- 248
- L
- Mechanical resistance
- RMS
- 22.95
- N·s/m
- Surround material
- Rubber
- Nominal diameter
- 18
- ″
- 427
- mm
- Overall diameter
- 427
- mm
- Baffle cutout diameter
- 220
- mm
- Overall depth
- 229
- mm
- Volume occupied by the driver (estimated)
- 6.9
- 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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