Description 336-Watt Sealed Box Monoblock Class D Amp Designed to mount flush into a subwoofer enclosure with easy access to controls and plug and play connectors; High-strength ABS enclosure with airtight, quick disconnect subwoofer lead wires; For use in sealed or ported enclosures; 300 watts RMS; 210 watts x 1 at 4 ohms; 336 watts x 1 at 2 ohms; Frequency response: 40 Hz to 200 Hz; Variable crossover adjustments: 50 Hz to 200 Hz; Bass boost: 0 dB to 12 dB; Selectable phase shift: 0deg to 180deg ; High-level 10-volt inputs; Unbalanced, low-level RCA inputs; Visual Protection Circuit with DC offset, short circuit and thermal overload; Selectable amp turn on via remote, DC signal or signal sense; Adjustable level control at .2 volts to 6 volts; 30 amp fuse; Includes wired bass remote with 16 ft. 3.5 mm cable, RCA cables and power connectorWarranty: One YearCountry of Origin: China This item usually ships within 36-72 hours during business days.This item typically arrives in 6-10 business days. Please allow for up to two times longer processing, shipping and arrival times for international orders shipping outside of the continental United States resulting from possible customs, export/import and border controls delays.