Brand: Eminence

Product Code: 820H

Availability:In stock

$197.99 197.99

Eminence 820H 8" Speaker 20 Watts 4 Ohm

4 ohm hemp cone speaker with rich, warm, full bodied tone with fat, punchy lows, smooth, but defined highs, and a nice break up. Prominent mids, but with a warm, smooth texture.


Nominal Basket Diameter 8", 203 mm
Nominal Impedance* 4 Ω
Power Rating*
Program Power 40 W
Watts 20 W
Resonance 144 Hz
Usable Frequency Range 80 Hz - 4.6 kHz
Sensitivity* 96.1 dB
Magnet Weight 15 oz.
Gap Height 0.25", 6.4 mm
Voice Coil Diameter 1", 25 mm
Resonant Frequency (fs) 144 Hz
DC Resistance (Re) 3.64 Ω
Coil Inductance (Le) 0.33m H
Mechanical Q (Qms) 18.78
Electromagnetic Q (Qes) 0.92
Total Q (Qts) 0.88
Compliance Equivalent Volume (Vas) 9.62 liters / 0.34 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 36.7 cc
Mechanical Compliance of Suspension (Cms) 0.13 mm/N
BL Product (BL) 5.74 T-M
Diaphragm Mass Inc. Airload (MMs) 9 grams
Efficiency Bandwidth Product (EBP) 156
Maximum Linear Excursion (Xmax) 1.59 mm
Surface Area of Cone (Sd) 230.9 cm2
Maximum Mechanical Limit (Xlim) N/A
Recommended Enclosure Volume
Sealed Acceptable
Vented Acceptable
Driver Volume Displaced 0.018 cu.ft. / 0.51 liters
Overall Diameter 8.24", 209.3 mm
Baffle Hole Diameter 7.13", 181.1 mm
Front Sealing Gasket Yes
Rear Sealing Gasket N/A
Mounting Holes Diameter 0.22", 5.6mm
Mounting Holes B.C.D. 7.75", 196.9mm
Depth 3.06", 77.7 mm
Net Weight 3.1 lbs, 1.41 kg
Shipping Weight 3.9 lbs, 1.77 kgs
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Non-vented core
Basket Materials Pressed steel basket
Cone Composition Paper cone
Cone Edge Composition Full paper cone
Dust Cap Composition Zurette dust cap