Cerwin Vega HED57 5"x7" 2-way Car Speakers Cerwin-Vega HED57 5" x 7" 2-way HED Series Car Speakers The new HED speaker series are the only option that you need to replace your factory OEM speakers when you want louder and better sound in your vehicle! The HED speaker sizes are identical to your factory-sized speakers for a quick and easy swap-out to give you that immediate sound experience when you cant take anymore of that dull and muffled noise from your factory speakers. Woofer Composition: Polypropylene Top Mount Depth: 2-1/44 Inches Sensitivity: 89.9 dB RMS Power Range : 25 Watts Peak Power Handling: 50 Watts Impedance: 4 Ohm Frequency response: 35-20000 Hz Diameter: 5x7/6x8 Inch Design: 2 Way Bottom Mount Depth: 2-1/44 Inches Tweeter Composition: Titanium