Does power: 20/10/5/2.5/8 the 5 inch coaxial shook her head high; Does the input voltage: 100 v / 70 v; Does frequency response: 100-20 KHZ; Does the sensitivity: 87 db; Does the material: iron; Does the weight (kg) : 1.7;

Does appearance size (mm) : 203 * 150; Hole size (mm) : 170;