1Enhanced Performance: Solve low power and poor sound quality issues with a lightweight and efficient design. Suitable for front, rear player, navigation power and sound quality enhancement usage. 2Improved Sound Quality: The navigation DSP amplifier box utilize high performance amplifier chips for enhanced RCA output to increase low frequency signal. 3DSP Connection Technology: Connect original car and player with DSP universal connection port for better power and sound. 4High Power Output: A/B class amplifier technology with maximum stable load of 2, RMS power of 4X50W at 14.4V at 2, and 4V RCA signal output. 5Slim and Compact Design: Easily install within 10 minutes with aluminum body, suitable for Android Radio Super Bass Subwoofer. 1 xNavigationDSPAmplifierBox 1 x Wiring Cable