Listen to your music with chest-thumping sound with the Power Acoustik NB-4 car speaker, having power handling capacity of 500 watts. With 4 ohms of impedance, this Power Acoustik 4-way speaker renders loud and clear sound. This Power Acoustik car speaker provides a good range of frequency response of 5KHz - 25KHz for faithful reproduction of sound. The polypropylene material used in the tweeter of the Power Acoustik NB-4 is fairly rigid with good internal damping and is completely weather-resistant. The four possible mounting options offered by this Power Acoustik 4-way speaker improve the audibility according to your convenience. The dome tweeter of this Power Acoustik car speaker produces smooth and accurate sound.