Eighteen Sound 15W500
Subwoofer
15″ / 380 mm
Nominal diameter
50 Hz
Resonance
0.52
Q factor
97 dB
Sensitivity
± 4 mm
Linear excursion
500 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 97.0
- dB
- Frequency response
- 50 - 4500
- Hz
- Resonance frequency (free air)
- fS
- 50.0
- Hz
- Mechanical quality factor
- QMS
- 9.64
- Electrical quality factor
- QES
- 0.55
- Total quality factor
- QTS
- 0.52
- Maximum linear excursion
- xmax
- 4.0
- mm
- Air volume displaced at xmax
- VD
- 340
- cm³
- Power handling
- P
- 350
- W
- Program power
- Pmax
- 500
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.2
- Ω
- Inductance (1kHz)
- LE
- 1.04
- mH
- VC Diameter
- 65
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 12.6
- N/A
- Motor constant
- Bl/√RE
- 5.53
- N/√W
- Material
- Ferrite
- Effective diameter
- 329
- mm
- Effective area
- SD
- 850
- cm²
- Moving mass
- MMS
- 55
- g
- Moving mass (without air load)
- MMD
- 37.7
- g
- Stiffness
- KMS
- 5.44
- N/mm
- Compliance
- CMS
- 184
- µm/N
- Equivalent volume to the compliance
- VAS
- 189
- L
- Mechanical resistance
- RMS
- 1.79
- N·s/m
- Nominal diameter
- 15
- ″
- 380
- mm
- Overall diameter
- 387
- mm
- Baffle cutout diameter
- 353
- mm
- Overall depth
- 161
- mm
- Flange thickness
- 11
- mm
- Mounting depth
- 150
- mm
- Volume occupied by the driver (estimated)
- 2.7
- L
- Net weight
- 4.3
- kg