15inch passive speaker box, TX 15M Economic carpet cabinet, with concise and compact appearance, excellency speaker can used in verious places, dancing hall, and professional sound projects. 15" bass: Stell basket, 3.0" high-temp polyimide film voice coil, cloth edge and non-pressed paper+kevlar conepaper cone Single 1.75" drivee: titanium diaphragm, 1.75" (44.4mm)polyimide film voice coil, uses the Ferro-fluid cooledLow wastage, low-impesance inductance of design, use the PTCprotection of compression horn in the crosover. Horizontal, vertical, truss-mounted mounting design, we guaranteemany mode build in systerm. Voitage: 110-230V, AC: 60-50Hz, Rmspower: 600watts, Impedance: 8ohms, Sensitivity: 103dB/m/w