Feature:Size: 80 x 58 x 28 mm (L x W x H)Install diagonal holes: 62mm adjacent angles: 50mmMax power: 200W ( applicable 5 to 12 inches subwoofer speaker )Impedance: 4 – 8 ohmApplication:Family 5.1 audio bass, subwoofer DIY, Car stereo bass, heavy bass DIYNote:Pull switch adjustable bass or subwoofer, inductance with oxygen-free copper enameled wire, dual inductance original 1.5mH key Wu sound special inductance in series, through the 2A high current switch for 1.5mH bass and 3.0mH bass between the free conversion.Package includes:1 x Pure Bass Subwoofer