Arc Audio X2 402 4” 2-Way Coaxial Speakers Full Range 4.0" Coaxial Speaker Design Sold In Pairs Only Designed And Engineered In The USA 2-Way Coaxial Design Reinforced Injected Poly Cone Material Design Specific Heavy-Duty Stamped Aluminum Basket Vented Basket Design for Improved Midbass, Overall Output And Elimination Of Rear Wave Distortion Ultra-Low Distortion Linear Suspension Design High-Temperature Copper / Kapton Voice Coil Former High-End Audiophile Grade Polypropylene Crossover Filter 15mm Silk Dome Tweeter Specifications - Speaker Size - 4.0" Speaker Type - 2-Way Coaxial Power Handling (Peak) - 80 Watts Power Handling (RMS) - 40 Watts Frequency Response - 110Hz - 20kHz Sensitivity - 86dB Impedance - 4 ohms Tweeter Diameter - 20mm Tweeter Dome Material - Wool Damped Silk Fiber | Arc Audio | | X2 402 4” 2-Way Coaxial | Black/Gray | Best Buy