Here are the specifications for Kenwood KFC-HQR1600 speakers (Reference HQR Class): 🔊 Type: 6.5-inch (16 cm) 3-Way Coaxial Speakers Max Power (Peak Power): 400 Watts 🔌 RMS Power: 100 Watts 🎛 Impedance: 4 Ohms 📈 Frequency Response: 65 Hz – 20,000 Hz 🎚 Sensitivity: 82 dB (1W / 1m) Components and Design: 🔘 Woofer Cone: Carbon Glass Fiber with a durable rubber surround 🎙 Midrange: 40mm PEI 🎶 Tweeter: 12mm ceramic for clear high notes 🧲 Magnet: High-density powerful magnet weighing ~340g 📏 Mounting Depth: Approx. 89.5 mm