Powerful Bass – This powerful subwoofer and built-in amplifier, the subwoofer produces a dynamic bass response that enhances the audio experience. It adds depth and richness, creating an immersive and thrilling soundstage that brings your music to life. Amplified Design - All in one design simplifies installation and space, making it an ideal choice for vehicles with limited space. Built-in amplifier ensures optimal power delivery to the subwoofer, eliminating the need for an external amplifier. Low-Pass Crossover - Adjusting the crossover point (50Hz – 125Hz), you can customize the subwoofer's output to match your preferences and the characteristics of your audio system. Enables you to achieve a balanced sound and preventing any overlap in the frequency response. Excellent Sound Reproduction - Its high-quality components and precise engineering, it delivers accurate and detailed sound. The design and construction minimizes distortion, for clean and crisp bass response. Instruction & Operation – Please see the Owner’s Manual for full detail and operation found near the bottom of this page (Technical Specifications). Dimensions 4.63” x 9” x 2.75”