Cadence QR Series Speakers 180W 6? x 9? 3-Way Car Speakers Specifications RMS Power Handling: 75 watts per peaker PEAK Power Handling: 180 Watts per Speaker Frequency Response: 50Hz – 20 kHz SPL @ 1w/1m: 92dB System Impedance: 4-Ohm Mounting Depth: 8,71cm Size:  6X9? Features Exteended Frequency tweeter Metalic Orange plated finish Press paper cone with Poly Mica layer Hign Temperature Kapton voice coil former Butyl Rubber surrounds Custom crossover design includes Custom Molded Grills