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Eminence 820H 8" Guitar Speaker

Name: Eminence 820H 8" Guitar Speaker
Brand: Eminence
SKU: 151711250323
Price: 109.99 USD
Availability: InStock

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820H 4 ohm

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We have distributed Eminence for 18 years.

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SPECIFICATION
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
THIELE & SMALL PARAMETERS
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
MOUNTING INFORMATION
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
MATERIALS OF CONSTRUCTION
Coil Construction	Copper voice coil
Coil Former	Polyimide former
Magnet Composition	Ferrite magnet
Core Details	None-vented core

Basket Materials	Pressed steel basket
Cone Composition	Paper cone
Cone Edge Composition	Full paper cone
Dust Cap Composition	Zurette dust cap

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