Goldwood GW-1858
Subwoofer
18″ / 457 mm
Nominal diameter
30 Hz
Resonance
1.1
Q factor
93 dB
Sensitivity
± 2 mm
Linear excursion
340 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 93.3
- dB
- Frequency response
- 20 - 6000
- Hz
- Resonance frequency (free air)
- fS
- 30.3
- Hz
- Mechanical quality factor
- QMS
- 6.70
- Electrical quality factor
- QES
- 1.30
- Total quality factor
- QTS
- 1.10
- Maximum linear excursion
- xmax
- 2.0
- mm
- Air volume displaced at xmax
- VD
- 255
- cm³
- Power handling
- P
- 220
- W
- Program power
- Pmax
- 340
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.3
- Ω
- Inductance (1kHz)
- LE
- 0.6
- mH
- VC Diameter
- 64
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 9.8
- N/A
- Motor constant
- Bl/√RE
- 4.26
- N/√W
- Weight
- 1.417
- kg
- Effective diameter
- 403
- mm
- Effective area
- SD
- 1277
- cm²
- Moving mass
- MMS
- 120.9
- g
- Moving mass (without air load)
- MMD
- 90.2
- g
- Material
- Polymer
- Stiffness
- KMS
- 4.37
- N/mm
- Compliance
- CMS
- 229
- µm/N
- Equivalent volume to the compliance
- VAS
- 524
- L
- Mechanical resistance
- RMS
- 3.43
- N·s/m
- Nominal diameter
- 18
- ″
- 457
- mm
- Overall diameter
- 457
- mm
- Baffle cutout diameter
- 419
- mm
- Mounting depth
- 200
- mm
- Volume occupied by the driver (estimated)
- 1.5
- L
- Net weight
- 3.572
- kg
- Frame material
- Stamped Steel