Earthquake Sound EQ88 Leaflet

Nominal Basket Diameter
Nominal Impedance
Power Rating
Resonance
Usable Frequency Range
Sensitivity
Magnet Weight
Voice Coil Diameter

8-1/4", 209.5mm

8-Ohms

80 Watts

 86.6Hz

86.6Hz - 10kHz

94.1 dB

42.2 oz.

2", 50.8mm

Resonant Frequency (Fo)
DC resistance (Re)
Coil Inductance (Le)
Mechanical Q (Qms)
Electromagnetic Q (Qes)
Total Q (Qts)
Compliance Equivalent Volume (Vas)
Mechanical Compliance of Suspension 

(Cms)

BL Product (BL)
Diaphragm Mass (Mmd)
Maximum Linear Excursion (Xmax)
Surface Area of Cone (Sd)

86.6Hz ±15%

7.2 Ohms

463.207m mH

8.067
0.454
0.429

11.696 Ltr / 0.41 cu.ft.

175.843

m mm/N

12.884 T-M

17.399 grams

3.2 mm

 216.424 sqM

Recommended Enclosure Volume
    Sealed
    Vented
Overall Diameter
Cut Out Diameter
Front Sealing Gasket
Rear Sealing Gasket
Mounting Holes Diameter 
Depth

 liters/ ft3
 liters/ ft3

8-1/4", 209.5mm

  7 1/16", 180mm

fitted as standard
fitted as standard

3-4/8", 88mm

Copper voice coil
Polyimide former
Ferrite magnet
Vented and extended core
Stamped steel basket
Paper cone
Cloth surround
Solid composition paper dust cap

Earthquake

 EQ88 Pro Audio Series

8-5 x 9mm

Sound That Will Move You

Earthquake Sound Corporation
2727 McCone Avenue • Hayward, CA 94545 • phone: 800-576-7944
fax: 510-732-1095 • www.earthquakesound.com