Precision Devices PD.185NR1
Subwoofer
18″ / 457 mm
Nominal diameter
34 Hz
Resonance
0.27
Q factor
95 dB
Sensitivity
± 11.75 mm
Linear excursion
2800 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.4
- dB
- Frequency response
- 30 - 800
- Hz
- Resonance frequency (free air)
- fS
- 34.0
- Hz
- Mechanical quality factor
- QMS
- 6.17
- Electrical quality factor
- QES
- 0.29
- Total quality factor
- QTS
- 0.27
- Maximum linear excursion
- xmax
- 11.75
- mm
- Air volume displaced at xmax
- VD
- 1368
- cm³
- Power handling
- P
- 1400
- W
- Program power
- Pmax
- 2800
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.4
- Ω
- Inductance (1kHz)
- LE
- 2.49
- mH
- VC Diameter
- 127
- mm
- Winding height
- HVC
- 30.5
- mm
- Winding material
- Copper
- Former material
- Glass Fibre
- Flux density
- B
- 1.18
- T
- Force factor
- Bl
- 29.5
- N/A
- Motor constant
- Bl/√RE
- 12.7
- N/√W
- Air gap height
- HAG
- 13
- mm
- Material
- Neodymium
- Effective diameter
- 385
- mm
- Effective area
- SD
- 1164
- cm²
- Moving mass
- MMS
- 216
- g
- Moving mass (without air load)
- MMD
- 187.2
- g
- Material
- Paper
- Stiffness
- KMS
- 10.03
- N/mm
- Compliance
- CMS
- 100
- µm/N
- Equivalent volume to the compliance
- VAS
- 102
- L
- Mechanical resistance
- RMS
- 7.48
- N·s/m
- Nominal diameter
- 18
- ″
- 457
- mm
- Overall diameter
- 474
- mm
- Baffle cutout diameter
- 415
- mm
- Overall depth
- 200
- mm
- Flange thickness
- 15
- mm
- Mounting depth
- 185
- mm
- Volume occupied by the driver (estimated)
- 7.0
- L
- Net weight
- 12.73
- kg