Specification

Nominal Basket Diameter

8", 203.2mm

Nominal Impedance

4-Ohms

Power Rating

80 Watts

Resonance

68Hz ±15%

Usable Frequency Range

68Hz - 10kHz

Sensitivity

97 dB

Magnet Weight

43.7 oz.

Voice Coil Diameter

2" 50.8mm

Thiele & Small Parameters

Resonant Frequency (fo)

87.763 Hz

DC resistance (Re)

3.800 Ohms

Coil Inductance (Le)

272.716 mH

Mechanical Q (Qms)

6.324

Electromagnetic Q (Qes)

0.330

Total Q (Qts)

0.313

Compliance Equivalent Volume (Vas)

21.004 liters/ft3

Mechanical Compliance of Suspension (Cms) 316.733mm/N

BL Product (BL)

8.002 T-M

Diaphragm Mass (Mmd)

16.843 grams

Maximum Linear Excursion (Xmax)

4 mm

Surface Area of Cone (Sd)

218.424 sqM

8 6/25", 209.5mm

Sound That Will Move You.

3 51/100"

89.3mm

7 2/25", 180mm

Earthquake EQ8 Pro Audio Series

Mounting Information

Recommended Enclosure Volume

Sealed

Vented

Overall Diameter

Cut Out Diameter

Front Sealing Gasket

Rear Sealing Gasket

Mounting Holes Diameter

Depth

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

liters/ ft3 liters/ ft3 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

Earthquake Sound Corporation

2727 McCone Avenue • Hayward, CA 94545 • phone: 800-576-7944

fax: 510-732-1095 • www.earthquakesound.com

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Earthquake Sound manual Earthquake EQ8 Pro Audio Series, Specification, Thiele & Small Parameters, Mounting Information

EQ8 specifications

The Earthquake Sound EQ8 is a powerful and advanced audio equalizer that stands out in the realm of sound systems, specifically designed for audiophiles and professional sound engineers. Its sophisticated technology and user-friendly features make it a popular choice for those looking to enhance their audio experience, whether in a home theater setup or a professional audio environment.

One of the primary features of the EQ8 is its 8-band graphic equalization, which allows users to adjust the frequency response of their audio system precisely. The bands cover a wide range of frequencies, from sub-bass to high treble, allowing for fine-tuning that can greatly enhance sound quality. Each band can be adjusted independently, providing the user with maximum control over their audio output.

The EQ8 utilizes high-quality components, including a professional-grade dual-conversion circuit design that minimizes noise and ensures clarity. This circuit arrangement helps in reducing distortion, resulting in an accurate representation of the audio source. The balanced XLR and unbalanced RCA inputs and outputs provide versatility, making it compatible with a wide array of audio equipment.

Another standout characteristic of the Earthquake Sound EQ8 is its built-in tone controls, featuring bass and treble adjustments. This feature allows users to quickly modify the sound signature of the audio without needing to dive deep into the graphic equalizer settings. This is particularly useful for quickly adapting to different listening environments or personal preferences.

The EQ8 also incorporates a comprehensive monitoring system, including LED indicators that show the levels of output and input signals. This ensures that users can easily check their settings and make adjustments as needed to prevent clipping and distortion.

Additionally, the unit comes equipped with a bypass function that allows users to compare the equalized sound to the original signal effortlessly. This feature is essential for sound professionals who need to evaluate the effectiveness of their equalization adjustments in real time.

With its robust construction, the Earthquake Sound EQ8 is built to last, making it a reliable choice for both home and professional settings. The combination of its user-friendly interface, advanced technology, and high-quality sound processing makes the EQ8 a valuable tool for anyone serious about audio fidelity. Whether for casual listening or professional audio mixing, the Earthquake Sound EQ8 is a solid investment that can significantly enhance any audio experience.