This bundle includes a Sony XM-1ES Mobile ES Mono Power Amplifier and two Sony XS-W104ES Mobile ES Series 10" 4-ohm Component Subwoofers, designed to elevate your in-car audio experience with powerful sound and enhanced clarity. The Sony XM-1ES Mono Power Amplifier delivers dynamic sound with 600W x 1 RMS output at 4 ohms and 1000W x 1 RMS at 2 ohms. Its class-D amplifier design ensures efficient power transmission and clear low-end sound. The amplifier features optimized power blocks with a toroidal core transformer to minimize electromagnetic interference, and select components like upgraded inductors and high-capacity electrolytic capacitors for superior sound. It includes a variable low pass filter (50–500 Hz) and a signal-to-noise ratio of 100dB. The amplifier's frequency response ranges from 10–500 Hz, with a total harmonic distortion of less than 0.05%. The two Sony XS-W104ES Subwoofers are crafted with Mica Reinforced Cellular (MRC) honeycomb diaphragms for unmatched rigidity and responsiveness. The subwoofers feature a Separated Notch Edge Surround for reduced distortion and a Five-beam Frame Structure with a Dynamic Air Diffuser for efficient air circulation and cooling. The Progressive Height Rate Spider allows for higher power handling, while gold-plated input terminals support up to AWG#10 speaker cables. Each subwoofer offers a peak power of 1800W, RMS power of 450W, and rated power of 350W, with an effective frequency range of 28-500 Hz and an impedance of 4 ohms. Together, this amplifier and subwoofer bundle provides a powerful and immersive audio experience, enhancing your music with deep, clear bass and precise sound reproduction.