Eighteen Sound 15W750 8Ω
4Ω
8Ω
Subwoofer
15″ / 380 mm
Nominal diameter
39 Hz
Resonance
0.37
Q factor
96 dB
Sensitivity
± 8 mm
Linear excursion
1200 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 96.1
- dB
- Frequency response
- 50 - 4300
- Hz
- Resonance frequency (free air)
- fS
- 39.0
- Hz
- Mechanical quality factor
- QMS
- 9.34
- Electrical quality factor
- QES
- 0.39
- Total quality factor
- QTS
- 0.37
- Maximum linear excursion
- xmax
- 8.0
- mm
- Air volume displaced at xmax
- VD
- 680
- cm³
- Power handling
- P
- 600
- W
- Program power
- Pmax
- 1200
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.1
- Ω
- Inductance (1kHz)
- LE
- 1.1
- mH
- VC Diameter
- 75
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 17.6
- N/A
- Motor constant
- Bl/√RE
- 7.79
- N/√W
- Material
- Ferrite
- Effective diameter
- 329
- mm
- Effective area
- SD
- 850
- cm²
- Moving mass
- MMS
- 88
- g
- Moving mass (without air load)
- MMD
- 70.5
- g
- Material
- Weather protected
- Stiffness
- KMS
- 5.29
- N/mm
- Compliance
- CMS
- 189
- µm/N
- Equivalent volume to the compliance
- VAS
- 218
- L
- Mechanical resistance
- RMS
- 2.31
- N·s/m
- Nominal diameter
- 15
- ″
- 380
- mm
- Overall diameter
- 393
- mm
- Baffle cutout diameter
- 354
- mm
- Overall depth
- 184
- mm
- Flange thickness
- 13
- mm
- Mounting depth
- 171
- mm
- Volume occupied by the driver (estimated)
- 4.3
- L
- Net weight
- 7.9
- kg