The new Cadence FX-Series amplifiers feature a sleek new design, computer optimized to ensure your amplifier runs as efficiently as possible with superior heat dissipation. Small enough to fit in the tightest locations, but powerful enough to blow away the competition. The Cadence FX-Series amplifiers feature all new state-of-the-art C-Force technology; guaranteed to reduce all anomalies, noises and electrical interferences to create the cleanest and purest sound possible. All amplifiers come outfitted with custom molded plastic end caps to protect your terminals and controls while also adding a stylish guise. Cadence settles for only the absolute best electronic components, with high efficiency studio-grade bipolar output stage transistors and high speed MOSFET power supplies. OEM Radio Integration via high-level input is standard on all Cadence Flash amplifiers. RCA Pre-amp outputs are featured on all models except FXA1800.4 and FXA5000.5 for easy multi-amp system integration. LED power and protection indicators are included to notify the user of the status of the amplifier. From the mute & delay soft start system, to the thermal and short circuit protection circuitry, you are getting the absolute best amplifier for your car audio system.