Eminence 820H
Guitar Speaker
8″ / 203 mm
Nominal diameter
144 Hz
Resonance
0.88
Q factor
97 dB
Sensitivity
± 1.59 mm
Linear excursion
40 W
Program Power
- Amazon.com
- $$
- Parts Express
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 96.8
- dB
- Frequency response
- 80 - 4600
- Hz
- Resonance frequency (free air)
- fS
- 144
- Hz
- Mechanical quality factor
- QMS
- 18.78
- Electrical quality factor
- QES
- 0.92
- Total quality factor
- QTS
- 0.88
- Maximum linear excursion
- xmax
- 1.59
- mm
- Air volume displaced at xmax
- VD
- 37
- cm³
- Power handling
- P
- 20
- W
- Program power
- Pmax
- 40
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.6
- Ω
- Inductance (1kHz)
- LE
- 0.33
- mH
- VC Diameter
- 25
- mm
- Winding material
- Copper
- Former material
- Polyimide
- Force factor
- Bl
- 5.74
- N/A
- Motor constant
- Bl/√RE
- 3.01
- N/√W
- Air gap height
- HAG
- 6.4
- mm
- Weight
- 0.425
- kg
- Material
- Ferrite
- Effective diameter
- 171
- mm
- Effective area
- SD
- 231
- cm²
- Moving mass
- MMS
- 9
- g
- Moving mass (without air load)
- MMD
- 6.5
- g
- Material
- Paper
- Stiffness
- KMS
- 7.69
- N/mm
- Compliance
- CMS
- 130
- µm/N
- Equivalent volume to the compliance
- VAS
- 9.62
- L
- Mechanical resistance
- RMS
- 0.43
- N·s/m
- Surround material
- Full paper
- Nominal diameter
- 8
- ″
- 203
- mm
- Overall diameter
- 209
- mm
- Baffle cutout diameter
- 181
- mm
- Overall depth
- 78
- mm
- Volume occupied by the driver
- 0.51
- L
- Net weight
- 1.41
- kg
- Frame material
- Pressed steel