Eighteen Sound 15NW530
Subwoofer
15″ / 380 mm
Nominal diameter
38 Hz
Resonance
0.33
Q factor
94 dB
Sensitivity
± 7.5 mm
Linear excursion
800 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.4
- dB
- Frequency response
- 47 - 3500
- Hz
- Resonance frequency (free air)
- fS
- 38.0
- Hz
- Mechanical quality factor
- QMS
- 5.81
- Electrical quality factor
- QES
- 0.35
- Total quality factor
- QTS
- 0.33
- Maximum linear excursion
- xmax
- 7.5
- mm
- Air volume displaced at xmax
- VD
- 641
- cm³
- Power handling
- P
- 500
- W
- Program power
- Pmax
- 800
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.3
- Ω
- Inductance (1kHz)
- LE
- 1.4
- mH
- VC Diameter
- 75
- mm
- Winding material
- Copper
- Force factor
- Bl
- 22.0
- N/A
- Motor constant
- Bl/√RE
- 9.56
- N/√W
- Material
- Neodymium
- Effective diameter
- 330
- mm
- Effective area
- SD
- 855
- cm²
- Moving mass
- MMS
- 135
- g
- Moving mass (without air load)
- MMD
- 117.6
- g
- Material
- Weather protected
- Stiffness
- KMS
- 7.69
- N/mm
- Compliance
- CMS
- 130
- µm/N
- Equivalent volume to the compliance
- VAS
- 154
- L
- Mechanical resistance
- RMS
- 5.55
- 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)
- 2.8
- L
- Net weight
- 4.4
- kg