Db Drive Wdx-as10 10" Amplified Subwoofer Ideal for cars with little space, it has everything you need, with its 250 watts RMS will exceed your expectations, resulting in a clear and loud sound. It is designed with durable materials, and thanks to its compact size you can install it under the seat of your car. Features low RCA inputs, wired control, 50Hz ~ 150Hz variable low filter, @45Hz 0-18dB variable bass boost, and MoSFET.