Check the listing for details. Hifonics A2000.1D 2000W Class-D Monoblock Car Amplifier & 4 Gauge AMP Kit. Condition: New. Listed at 349.99 USD. Hifonics A2000.1D 2000W Class-D Alpha Series Monoblock Car Amplifier with Bass Remote & Absolute KIT4 4 Gauge Amp Kit 2000-watt Hifonics ALPHA Series Super D-Class mono subwoofer car audio amplifier with electronic crossovers utilizing Ultra-Fi MOSFETS for high power efficient cooling and minimal distortion. Bass remote included. General Features: Hifonics A2000.1D Alpha Series Class-D Compact 1200 Watt 1-Ohm Stable Monoblock Car Audio Amplifier Max Power Rating: 4 ohms: 500 Watts x 1 chan. 2 ohms: 1000 Watts x 1 chan. 1 ohm: 2000 Watts x 1 chan. Total power output: 2000 Watts Pulse Width Modulated MOSFET power supply Wired remote bass level control included LED power (green) and protect (red) indicators Accu-Cross crossovers allow for complete control of the signal directed to all speakers Mono channel operation Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Heavy-duty aluminum alloy heat-sink The Ultra-Fi™ MOSFET is designed for music production vs just electronics output power. It produces high musical power with high cooling efficiency and minimal distortion. Frequency Response: 10 - 250 Hz Total Harmonic Distortion (THD): Signal to Noise Ratio: >95 dB Variable low-pass filter: 30 - 250 Hz, 12 dB/octave Subsonic filter: 10 - 50 Hz Bass Boost: 0-12dB @ 45Hz Fusing: Use External Fuse Power Terminal 12V/GND: 4 AWG, 14 AWG Dimensions: 13.62"W x 5.75"D x 2.37"H Authorized Internet Dealer 1-year Manufacturer's Warranty Warning: This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.