SpeakerCraft 620-ROX 6 1/2" WOOFER, 2 WAY OUTDOOR ROCK SPEAKER (EACH) - SANDS... 6 " Polypropylene Cone Woofer with Sealed Voice Coil and Silicone Encased Leads " Polyamide Dome Tweeter with Silicone Encased Leads, Coaxial Mounted Similar in Sound to the CRS6 Zero Impedance: 8 Ohms Power Recommendations: 5 - 60 Watts (Undistorted)