Cadence QRS Series Speakers 6?9? 3-Way Coaxial Car Speakers Specifications RMS Power Handling: 100 watts per speaker PEAK Power Handling: 250 Watts per Speaker // 500 Watts per System Frequency Response: 55Hz – 20 kHz SPL @ 1w/1m: 92dB System Impedance: 4-Ohm Mounting Depth: 8,7cm Size: 6X9 Features 2 way speaker system 25 mm Silk Dome Tweeter Neodymium motor design ( tweeter ) Woven Kevlar Fiber cone Hign Temperature Kapton voice coil former Rubber surrounds Intergraded crossover design includes Custom Molded Grills