A real HiFi full-range speaker will be suitable for classic, human beautiful sound and stringed music.</br>Square-shape, speaker's outer diameter: 78mm; screw holes diagonal pitch: 83mm; speaker height: 52mm; hole diameter: 71mm.</br>Rated power is 15W; impedance is 8 ohm; super sensitivity of 90dB, 2.5L equivalent volume, effective frequency is 108Hz-20kHz.</br>Unique design: adopted well-performed magnet, 20mm big voice coil, fatigue blended elastic wave, exponential type cone and imported rubber coil.</br>Three-band equalizer, sweet, crisp and clear voice, high frequency is bright and original; low frequency also make you enjoy hearing.</br></br>Product Description</br></br>Parameter:<br /> Unit Size: 3 inches<br /> Horn Outer Diameter: 78mm<br /> Screw Holes Diagonal Pitch: 83mm<br /> Speaker Height: 52mm <br /> Rated Power: 15W<br /> Impedance: 8 ohm<br /> Sensitivity: 90dB <br /> Equivalent Volume: 2.5L<br /> Effective Frequency: 108Hz -20kHz <br /> hole diameter: 71mm<br /> <br /> Package includes:<br /> 1 X 3" 8Ω 15W Speaker （Square）<br /></br><br/>http://www.amazon.com/gp/product/B01IN8YI4Y