Power handling: peak: 300 Watts per set / RMS: 150 Watts per set</br>Recommended power range: 45 - 75 Watts RMS per channel</br>Natural fiber woofer and midwoofer Cone</br>Natural uv resistant butyl rubber inverted surround</br>Integrated sealer gasket</br></br>Product Description</br></br>6.5" power class 2-way component system. 1.75" advanced motion pleeted diaphragm tweeter. Audiophile grade Phase optimized Crossover. 4 Ohms impedance. Nickel Plated spring terminals. Top-mount depth: 2.65". Frequency response: 20 - 40??000 Hz. Sensitivity: 94Db.</br><br/>http://www.amazon.com/gp/product/B01DTOTX1U