Hertz UNO X 170 6.7" 16.7cm 2 Way Car Door Van Coaxial Speakers 50w RMS PairHERTZ X 170 TWO WAY COAXIAL170 (6. 7) mm (in.) Coaxials 200 W 4 Ohm UNO SPEAKERS WHERE THE SOUND EXPERIENCE BEGINS The 6. 7 two way coaxials X 170 features a special designed tweeter faceplate optimized for exceptional off axis performance to ensure a linear frequency response when installed in a factory replacement setup. The pressed paper cone treated with water repellent along with the foam surround provide a very high SPL and extended low