Eighteen Sound 15NMB420
Subwoofer
15″ / 380 mm
Nominal diameter
42 Hz
Resonance
0.29
Q factor
99 dB
Sensitivity
± 6.5 mm
Linear excursion
700 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 99.4
- dB
- Frequency response
- 40 - 5000
- Hz
- Resonance frequency (free air)
- fS
- 42.0
- Hz
- Mechanical quality factor
- QMS
- 6.00
- Electrical quality factor
- QES
- 0.30
- Total quality factor
- QTS
- 0.29
- Maximum linear excursion
- xmax
- 6.5
- mm
- Air volume displaced at xmax
- VD
- 585
- cm³
- Power handling
- P
- 450
- W
- Program power
- Pmax
- 700
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.6
- Ω
- Inductance (1kHz)
- LE
- 0.8
- mH
- VC Diameter
- 75
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 19.0
- N/A
- Motor constant
- Bl/√RE
- 8.03
- N/√W
- Material
- Neodymium
- Effective diameter
- 339
- mm
- Effective area
- SD
- 900
- cm²
- Moving mass
- MMS
- 73
- g
- Moving mass (without air load)
- MMD
- 54.7
- g
- Material
- Weather protected
- Stiffness
- KMS
- 5.08
- N/mm
- Compliance
- CMS
- 197
- µm/N
- Equivalent volume to the compliance
- VAS
- 225
- L
- Mechanical resistance
- RMS
- 3.21
- N·s/m
- Nominal diameter
- 15
- ″
- 380
- mm
- Overall diameter
- 387
- mm
- Baffle cutout diameter
- 353
- mm
- Overall depth
- 169
- mm
- Flange thickness
- 11
- mm
- Mounting depth
- 158
- mm
- Volume occupied by the driver (estimated)
- 2.6
- L
- Net weight
- 3.9
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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