POWERFUL 800W PEAK/400W RMS OUTPUT: 12" high-excursion woofer delivers deep, accurate bass for movies, music, and gaming. CUSTOM SOUND CONTROL: Adjustable crossover and phase switch let you fine-tune low frequencies for your system and room. MDF CABINET WITH REAR-FIRING PORT: Precision MDF enclosure with engineered rear port enhances punchy, room-filling bass. VERSATILE CONNECTIONS: RCA line-level and speaker-level inputs/outputs ensure easy integration with most audio setups. SLEEK WHITE DESIGN & UNIVERSAL VOLTAGE: Rock Shaker 12 White measures 15.75" x 15.75" x 19.4" and supports 110-240V power for flexible use.