Atlantic Technology FS-4000-SIL Front-Stage Speaker System, Silver (Single) (Discontinued by Manufacturer) Single-speaker system that combines left, center, and right channel speakers within single enclosure Each chamber includes 1-inch tweeter, 4.5-inch woofer, and 4.5-inch bass pressure driver 3-position HF energy switches and 2-position boundary compensation switches optimize performance 75 Hz to 20 kHz frequency response; recommended power handling of 10 to 125 watts RMS Automotive-grade metallic silver finish; measures 40.1 x 6.63 x 5 inches (W x H x D); 90-day warranty