... We are manufacturer, professional loudspeaker. 1, Peak power 250W. 2, Woofer 1*10''(25cm).8ohm 3,tweeter 1*1'' throat.3'' thr We ... are manufacturer, professional loudspeaker.1, Peak power 250W.2, Woofer1*10''(25cm) 8ohm.3, tweeter 1*1'' throat. 3'' throat etc ... ... Features: Woofer: 1*10'' (25cm) 8Ω magnet ON/OFF Aluminium CD-ROM. Tweeter: 1*1" throat, 3'' throat CD-ROM ...