Immersive Bass Power: Rockville RTB12A delivers 600W peak power (300W RMS) with a 12" high-power woofer for punchy, deep, and impactful bass. Integrated Amplifier: Built-in 300W RMS amplifier ensures optimal tuning between the subwoofer, amp, and enclosure for crystal-clear low-end sound. Customizable Sound Control: Adjustable bass equalizer with up to 18dB boost @ 45Hz and built-in adjustable crossover for seamless integration with your car audio system, plus a dashboard bass remote for convenient control. Durable Tubular Design: Vented enclosure with a rear aero vent system and aviation-grade tweed cover enhances bass response and ensures longevity. Easy Installation: Includes speaker-level and RCA line-level inputs, steel mounting brackets, and Velcro straps for a hassle-free setup in any vehicle.