'- Hard hitting bass with music so much fuller and with a new dimension. – Rugged construction minimizes vibration caused by car noise and won’t rattle windows – 10″ Super Slim Active Subwoofer with Amplifier – Low frequency ability of the bass horn, high quality low tone output. – Fine workmanship and good performance. – Easy to install, can be installed directly under the driver’s seat – 180w (90w x 2) maximum output power. – 120 watts (60w x 2) rms power output. – Dc14.4v (10v-16v) power source. – 10 inch subwoofer. – Built-in amplifier.