Features: Engineered for HIFI systems, this 4inch mids bass driver delivers precise vocal/instrument reproduction with distortionfree low frequencies, for audiophile speakers components and sound upgrades. Features rigid composite cone for clear sound, long throw suspension for powerful bass extension, and natural rubber surround to minimize resonance in premium speakers accessories. for audiophiles, home theater enthusiasts, and car sound systems builders seeking studio quality sound reproduction in compact speakers driver designs. Elevates music playback home theaters, recording studios, or customs car sound setups with its wide dynamic ranges and distortion resistant performances. Builts to last with a reinforced iron frame and metal dust cap, this mids bass unit maintains accuracy across extended listening while resisting wear. Specifications: Speakers impedance: 6Ω Sensitivity: 90dB power: 50W speakers net weight: 670g Package Includes: 1PC HIFI 4inch mids-woofer speakers note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.