The Earthquake EQ8S8 Cloth Surround Speaker is a part of the EQ line of maximum musical output drivers that were specifically designed to provide smooth, low distortion midrange/midbass output for the highest-quality sound reinforcement applications. Because of their relatively high resonance and very low Qts value, the EQ line can be mounted in small enclosures while maintaining a smooth, peak-free resonance.
The EQ8S8 driver is fitted with a sealed back basket that acts like a protective barrier to eliminate interference from other components that may be loaded into the same enclosure. This feature allows the speaker to maintain its integrity and performance, resulting in high-fidelity sound preservation and reduced distortion.
Specifications
Power Handling: 250W Max
Frequency response: 395Hz–5kHz
Voice Coil Diameter: 1.5 in. (38.6 mm)
Impedance (ohms): 8
Sensitivity: 96.3dB
Resonance: 395Hz
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
Dimensions
Overall Diameter: 8.22 in. (209 mm)
Cutout Diameter: 7.12 in. (181 mm)
Mounting Hole Diameter: 0.15 in. (4-5.5 mm) x 0.39 in. x 10 mm)
