Specification

Nominal Basket Diameter

8-3/16", 209mm

Nominal Impedance

8-Ohms

Power Rating

80 Watts

Resonance

395Hz

Usable Frequency Range

395Hz - 5kHz

Sensitivity

96.3 dB

Magnet Weight

42.2 oz.

Voice Coil Diameter

1.5" 38.6mm

Thiele & Small Parameters

Resonant Frequency (fo)

395Hz ±15%

DC resistance (Re)

6.5 Ohms

Coil Inductance (Le)

367.888m mH

Mechanical Q (Qms)

3.896

Electromagnetic Q (Qes)

1.662

Total Q (Qts)

1.165

Compliance Equivalent Volume (Vas) .75 liters / .0624 cu.ft.

Mechanical Compliance of Suspension (Cms)

11.806mm/N

BL Product (BL)

11.557 T-M

Diaphragm Mass (Mmd)

12.001 grams

Maximum Linear Excursion (Xmax)

1.6 mm

Surface Area of Cone (Sd)

211.241 cm

Sound That Will Move You

Earthquake EQ8S8 Pro Audio Series

dBSPL

Ohm

110

50

100

40

 

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 3/16", 209mm

7 1/8", 181mm fitted as standard fitted as standard 4-5.5 x 10mm 2-15/16", 88mm

90

 

 

 

 

 

 

 

 

30

 

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

70

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

50

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

40

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

30

50

100

200

500

1K

2K

5K

10K

6

20 Hz

20K

SPL vs Freq

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 EQ8S8 Pro Audio Series, Specification, Thiele & Small Parameters

EQ8S8 specifications

The Earthquake Sound EQ8S8 is a powerful subwoofer that stands out in the realm of home audio equipment. Designed specifically for audiophiles and movie enthusiasts, this subwoofer delivers deep, rich bass that enhances the overall sound experience. With its innovative features and cutting-edge technology, the EQ8S8 elevates your audio system, making it ideal for both music and home theater applications.

One of the standout features of the EQ8S8 is its impressive 8-inch driver. This driver, coupled with a robust amplifier, produces a remarkable output of up to 300 watts peak power, ensuring that users enjoy heart-thumping bass that resonates throughout the room. The subwoofer's frequency response range spans from 28Hz to 150Hz, allowing for deep low-end sounds that can bring music and movies to life. The EQ8S8 also boasts a built-in high-pass filter, which enables a seamless integration with satellite speakers, delivering a balanced audio output.

In terms of design, the EQ8S8 is constructed with durability and aesthetics in mind. The enclosure is made from high-quality MDF, which minimizes distortion and unwanted vibrations, producing a cleaner sound. Its sleek finish not only enhances the overall appearance but also makes it a perfect fit for any home décor. The subwoofer’s compact size allows for versatile placement options, making it suitable for small or large spaces alike.

The EQ8S8 incorporates advanced technologies such as automatic signal sensing and phase control, which optimize performance based on the environment. The automatic signal sensing feature ensures that the subwoofer only engages when audio signals are present, promoting energy efficiency. Phase control allows users to adjust the phase angle of the output, enabling better synchronization with main speakers for a more cohesive soundstage.

In conclusion, the Earthquake Sound EQ8S8 is an exceptional subwoofer that combines powerful performance with intelligent technologies. Its remarkable driver, high output power, and advanced features make it a top choice for anyone seeking to enhance their audio experience. Whether you are listening to music or enjoying a movie, the EQ8S8 promises to deliver thumping bass and exceptional sound quality.