Parameter Information: Item Size: 6.5 inch Frequency Range (Hz): 32Hz-20KHz Audio Sensitivity: 93dB Speaker Types: Coaxial Speakers Voltage: 12V Car Make: Universal Material Type: Metal and Magnet Output Power: 150W Impedance: 4 Signal to Noise Ratio: 93dB Product Description: Features: - Dual driver speaker acoustic design, military-grade N38 magnets, magnetic force 10 times greater than traditional ferrite magnets, hard and stable texture, very sensitive response. - The bass is thick, the midrange is full, and the treble is high and not harsh. Low-power lossless crossover and high-performance miniature tweeter, with high sensitivity and good penetration. - Enhanced protection, unique rigid metal PE synthetic material mesh cover with hard texture to protect the diaphragm. - high temperature resistance, aging resistance, can be used for a long time without deformation. - Seamless wire terminals, pure copper material, to ensure signal transmission and smooth operation. Humanized design, easy to install. Rated power: 75W Shape: Round shape Woofer: 165mm Application place. Car Note: - The speaker will have a murmur and hum in the following situations: - The actual power of the speaker itself is not very high, the speaker sounds very loud. - The reconfiguration process is not connected correctly. - Without the power amplifier installed, the sound of the host is not good and the power is not good, the speaker sounds very loud. Product Weight: 650 G / 22.93 ounces Product Dimensions (L * W * H): 165 * 165 * 35 MM / 6.50 * 6.50 * 1.38 inches Package Weight: 685.0 G / 24.16 ounces