130 mm Subwoofer with Polypropylene Cone, Rubber Surround and a high sound pressure. Technical Data: Sinus/Music Performance: 25/50 Wfrequenz range: 50… 4000 Hzimpedanz: 8 & # 8486RESONANZFREQUENZ: 70 Hzschall pressure: 89 Dbkorb (L x W): 130×130 Mmerforderlicher hole cut-out diameter: 121 Mmeinbautiefe: 58 Weight: 705 g