Pyramid 438GS 4-Inch 160-Watts 2-Way Speakers (Pair) (Discontinued by Manufacturer) 4'' Yellow Injection-Molded Polymica Cone Woofer - 1.75'' Aluminum Film Tweeter - Mounting Depth: 1.75'' Specially Treated Rubber Edge Suspension - 160 Watts Rated Power Resists Moisture and Temperature Extremes - SPL: 89dB 40 oz. Magnet Structure - Frequency Response: 90Hz-18k Hzv 1'' High Temperature Aluminum Voice Coil - 4 Ohm Impedance