Goldwood GW-408D
Woofer
8″ / 203 mm
Nominal diameter
51 Hz
Resonance
0.64
Q factor
88 dB
Sensitivity
± 2.5 mm
Linear excursion
220 W
Program Power
- Parts Express
- $$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 87.5
- dB
- Frequency response
- 44 - 5000
- Hz
- Resonance frequency (free air)
- fS
- 51.2
- Hz
- Mechanical quality factor
- QMS
- 4.46
- Electrical quality factor
- QES
- 0.75
- Total quality factor
- QTS
- 0.64
- Maximum linear excursion
- xmax
- 2.5
- mm
- Air volume displaced at xmax
- VD
- 52
- cm³
- Power handling
- P
- 100
- W
- Program power
- Pmax
- 220
- W
- Nominal impedance
- Z
- 2 x 8
- Ω
- DC resistance (in series)
- RE
- 14.8
- Ω
- Inductance (1kHz, in series)
- LE
- 2.0
- mH
- VC Diameter
- 25
- mm
- Winding material
- Aluminum
- Force factor (in series)
- Bl
- 13.25
- N/A
- Motor constant
- Bl/√RE
- 3.45
- N/√W
- Weight
- 0.567
- kg
- Effective diameter
- 162
- mm
- Effective area
- SD
- 206
- cm²
- Moving mass
- MMS
- 27.7
- g
- Moving mass (without air load)
- MMD
- 25.5
- g
- Material
- Poly
- Stiffness
- KMS
- 2.86
- N/mm
- Compliance
- CMS
- 350
- µm/N
- Equivalent volume to the compliance
- VAS
- 20.8
- L
- Mechanical resistance
- RMS
- 2.0
- N·s/m
- Surround material
- Rolled Foam
- Nominal diameter
- 8
- ″
- 203
- mm
- Overall diameter
- 203
- mm
- Baffle cutout diameter
- 181
- mm
- Mounting depth
- 92
- mm
- Volume occupied by the driver (estimated)
- 0.67
- L
- Net weight
- 1.644
- kg
- Frame material
- Stamped Steel