NVX XCA9K – 9000W RMS XC-Series Korean Competition Monoblock Amplifier. Push your bass system to the absolute limit with the NVX XCA9K — a competition-class monoblock amplifier engineered for maximum performance, durability, and unmatched output. Designed in the USA and precision-built in Korea, the XCA9K delivers a true 9000 watts RMS at 1 ohm, making it ideal for elite SPL systems and hardcore bass enthusiasts.Featuring strapable and linkable architecture, this amplifier can be paired with a second unit for 18000W RMS at 2 ohms, or linked with multiple amps using its built-in RJ11 synchronization system. No complicated tuning or extra tools needed—gain matching is handled internally for effortless expansion. The XCA9K includes a wired LED remote bass knob that shows live voltage and temperature, plus a clip light for real-time safety and tuning feedback. A full suite of audio controls includes a variable low-pass crossover (35–250 Hz) and subsonic filter (10–50 Hz) to help you shape your bass perfectly. A 91 dB signal-to-noise ratio ensures your music stays clean at any volume. Internally, the XCA9K is built for extreme reliability using IRF3206 high-efficiency MOSFETs, 12 FDH45N50F output transistors, and 35V/4700µF capacitors to deliver smooth, consistent power. With triple 1/0 AWG power and ground inputs, 4 AWG speaker terminals, and 4-way protection circuitry, it’s ready for the most demanding installs. If you want the most powerful and reliable amplifier for your competition system or extreme daily setup, the NVX XCA9K is your ultimate solution.