3-Way Bass Reflex System Three3.4" Piezo Tweeters For The High Frequencies 4" x 14" Piezo Horn For The Medium Range Dual 15" Woofer with 30oz Magnet Built in Crossover Network Covered With Carpet, Fitted With Corner Protectors 8 Ohm Impedance Dimensions: 47 x 18 x 12.5 inches (H x W x D)