6.5 inch 400W Subwoofer Power Amplifier F8957

Front firing design with small footprint Transmission line construction and single slot port for optimized bass output Built in 150-Watt Class "A/B" high efficiency power amplifier 12dB/Octave variable filter from 40 Hz to 180 Hz Automatic signal detection circuitry Status LED indicators Low level (RCA) audio inputs 6.5" high power subwoofer 0 - 180° phase shift