Specification
Nominal Basket Diameter
Nominal Impedance
Power Rating
8", 203.2mm
4-Ohms
80 Watts
68Hz ±15%
68Hz - 10kHz
97 dB
8 6/25", 209.5mm
Sound That Will Move You.
Resonance
Usable Frequency Range
Sensitivity
Magnet Weight
43.7 oz.
2" 50.8mm
Voice Coil Diameter
3 51/100"
89.3mm
Thiele & Small Parameters
Resonant Frequency (fo)
DC resistance (Re)
Coil Inductance (Le)
87.763 Hz
3.800 Ohms
272.716 mH
6.324
7 2/25", 180mm
Mechanical Q (Qms)
Electromagnetic Q (Qes)
Total Q (Qts)
Compliance Equivalent Volume (Vas)
0.330
0.313
21.004 liters/ft3
Mechanical Compliance of Suspension (Cms)316.733mm/N
Earthquake EQ8 Pro Audio Series
BL Product (BL)
8.002 T-M
16.843 grams
4 mm
Diaphragm Mass (Mmd)
Maximum Linear Excursion (Xmax)
Surface Area of Cone (Sd)
218.424 sqM
Mounting Information
Recommended Enclosure Volume
Sealed
Vented
liters/ ft3
liters/ ft3
Overall Diameter
Cut Out Diameter
Front Sealing Gasket
Rear Sealing Gasket
Mounting Holes Diameter
Depth
8 6/25", 209.5mm
7 2/25", 180mm
fitted as standard
fitted as standard
.19" x .35", 5 x 9mm
3 51/100", 89.3mm
Materials of Construction
Copper voice coil
Polyimide former
Ferrite magnet
Vented and extended core
Stamped steel basket
Paper cone
Cloth surround
Solid composition paper dust cap
Earthquake Sound Corporation
2727 McCone Avenue • Hayward, CA 94545 • phone: 800-576-7944
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