The Earthquake EQ12S8 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 EQ12S8 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
ower Handling: 400W Max
Frequency response: 280Hzā6kHz
Voice Coil Diameter: 1.97 in. (50 mm)
Impedance (ohms): 8
Sensitivity: 97dB 2.83V/1M
Resonance: 319 Hz
Parameters
Resonant Frequency (Fs): 319Hz
DC Resistance (Re): 6.8 ohms
Coil Inductance at Fs (Lces): 1.179 mH
Mechanical Q (Qms): 5.72
Electromagnetic Q (Qes): 2.88
Total Q (Qts): 1.91
Maximum Linear Excursion (Xmax): 4 mm
Dimensions
Overall Diameter: 12.25 in. (310 mm)
Cutout Diameter: 11.06 in. (281 mm)
Mounting Hole Diameter: 5/16 in. (7 mm) x 3/8 in. (9 mm)
