Eminence Patriot 820H
4Ω
Guitar Speaker
| Nominal diameter | 8″ / 203 mm |
| Resonance | 144 Hz |
| Q factor | 0.88 |
| Sensitivity | 96.8 dB |
| Linear excursion | ± 1.6 mm |
| Program Power | 40 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 96.8dB
- Frequency response 80 - 4600Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 144Hz
- Mechanical quality factor QMS 18.78
- Electrical quality factor QES 0.92
- Total quality factor QTS 0.88
Large signal parameters
- Maximum linear excursion xmax 1.6mm
- Air volume displaced at xmax VD 37cm³
- Power handling P 20W
- Program power Pmax 40W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.6Ω
- Inductance (1kHz) LE 0.33mH
- VC Diameter 25.4mm
- Winding material Copper
- Former material Polyimide
Magnet
- Force factor Bl 5.74N/A
- Motor constant Bl/√RE 3.01N/√W
- Air gap height HAG 6.4mm
- Weight 0.425kg
- Material Ferrite
Diaphragm
- Effective diameter 171mm
- Effective area SD 231cm²
- Moving mass MMS 9g
- Moving mass (without air load) MMD 6.5g
- Material Hemp paper
Suspensions
- Stiffness KMS 7.69N/mm
- Compliance CMS 130µm/N
- Equivalent volume to the compliance VAS 9.62L
- Mechanical resistance RMS 0.43N·s/m
- Surround material Full paper
Dimensions
- Nominal diameter 8″
- 203mm
- Overall diameter 209mm
- Baffle cutout diameter 181mm
- Overall depth 78mm
- Volume occupied by the driver 0.51L
- Net weight 1.406kg
- Frame material Pressed Steel
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Export this driver to a simulation software:
Closed Box Simulator·
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