4,000 watts x 1 @ 1 ohm; 2,000 watts x 1 @ 2 ohms; 1,000 watts x 1 @ 4 ohms; 0 to 12 dB bass boost; Red heat sink elements; SPEED-FET output devices to maximize power efficiency while improving sound quality and minimizing distortion; High-level inputs to integrate with OEM systems; Fully adjustable electronic crossovers; Low-voltage RCA inputs produce the highest sound quality without interference and minimal distortion in the signal path; Ability to daisy-chain multiple amps to eliminate additional signal cables from the source unit; LED system protection circuitry diagnostics; Includes wired bass remote and owners manual;