Kicker 46CXA18001 CXA1800.1 1800-Watt Mono Class D Subwoofer Amplifier

Upgrade your car audio system with the Kicker 46CXA18001 (CXA1800.1) CX-Series Monoblock Class D Amplifier. Engineered to deliver massive power and subterranean bass performance, this high-efficiency amplifier drives up to 1,800 Watts RMS into either a 2-ohm or 1-ohm load. Built with Kicker’s advanced Class D circuit architecture, premium internal components, and custom heat sinks, the CXA1800.1 maximizes power density while running cool and stable under extreme electrical demand. Equipped with Fail-Safe Integration Technology (FIT™), the amplifier’s differential RCA inputs accept both high-level (speaker wire) and low-level signals while rejecting alternator noise and electrical interference. The built-in crossover suite features a variable 12dB/octave low-pass filter (50Hz–200Hz), a fixed 24dB subsonic filter (25Hz), and variable KickEQ™ bass boost (0–12dB @ 40Hz). For flexible installation, double-slotted brackets allow standard flat mounting or space-saving vertical mounting. Key Features 1,800 Watts RMS Output: Delivers a full 1,800 Watts RMS at both 1-ohm and 2-ohm loads for maximum subwoofer wiring flexibility. High-Efficiency Class D Design: Maximum power density with minimal draw on your vehicle's 12V electrical system. FIT™ (Fail-Safe Integration Technology): Differential inputs accept high-level or low-level signals while isolating noise and ground loops. Variable Crossover & KickEQ™: Precise sound tuning via 12dB/oct Low-Pass Crossover (50–200Hz), 24dB Subsonic Filter (25Hz), and 0–12dB Bass Boost at 40Hz. Dual Mounting Options: Includes hardware for conventional flat mounting or vertical space-saving bracket installation. Remote Bass Control Compatible: Ready for the optional Kicker CXARC dash-mounted remote bass controller (sold separately). Technical Specifications Amplifier Class: Class D Monoblock RMS Power Output @ 1 Ohm: 1,800 Watts x 1 channel (14.4V, ≤1% THD+N) RMS Power Output @ 2 Ohms: 1,800 Watts x 1 channel (14.4V, ≤1% THD+N) RMS Power Output @ 4 Ohms: 450 Watts x 1 channel (14.4V, ≤1% THD+N) Peak Dynamic Power: Up to 3,600 Watts Frequency Response: 25Hz – 200Hz (+0/-1dB) Signal-to-Noise Ratio: >95dB (A-weighted, re: rated power) Variable Low-Pass Filter: 50Hz – 200Hz (12dB/octave) Subsonic Filter: Fixed @ 25Hz (24dB/octave) KickEQ™ Bass Boost: Variable 0 to +12dB @ 40Hz Input Sensitivity: Low Level: 125mV–5V / High Level: 250mV–10V Dimensions (L x W x H): 13.62" x 6.75" x 2.38" (34.6 cm x 17.1 cm x 6.0 cm)