TP-5516 Specification: l Drive unit: WOOFER 5.25inch Front 2*3inch+2*1inch Rear 2*3inch+2*1inch Center 2*3inch+1*1inch l Thd:0.5% l Impedance:WOOFER 4 ohm Satellite 4 ohm l Frequency response: WOOFER 80Hz-200Hz satellite 200Hz-17KHz l Input power:230V50-60Hz l Rms power: 25w+5w*5 l Color: black l Dimensions:woofer mm Central Satellite Size of Packing: mm