Outdoor audio performance that blends into any landscape and withstands the elements. The cast enclosure is made from a glass reinforced resin to provide a sturdy, waterproof cabinet with low acoustic resonance for better sound. 46 Hz to 20 kHz and +/-3 dB frequency response. 8 ohms nominal impedance. 10 to 125 W per channel power. 91 dB SPL 2.83 V at 1 m sensitivity. Coaxial driver with injection molded polypropylene cone woofer. 0.56 inch PEI tweeter.