THUNDER1000.1 Class D 1000 Watt RMS Mono Block Compact Vehicle Stereo Sound System Amplifier w/Selectable Bass Boost, & Variable Subsonic Filter

Perfect for vehicles with limited space: The small chassis and compact design enable installation in areas with minimal room. Heat sink protection: An extruded aluminum heat sink optimizes heat dissipation from the circuitry to protect the amplifier. Bass boost to enhance your bass: Selectable 0, 6, or 12dB bass boost centered at 50Hz lets you elevate the bass to a higher level. Variable Butterworth crossover: A 12dB/Oct crossover permits you to set the frequency your speakers will play down or up to. Protected from damaging low frequencies: A variable subsonic filter is built to block potentially harmful bass frequencies