Feature: 1. Enhanced 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. 2. Improved Sound Quality: The navigation DSP amplifier box utilize high performance amplifier chips for enhanced RCA output to increase low frequency signal. 3. DSP Connection Technology: Connect original car and player with DSP universal connection port for better power and sound. 4. High Power Output: A/B class amplifier technology with maximum stable load of 2Ω, RMS power of 4X50W at 14.4V at 2Ω, and 4V RCA signal output. 5. Slim and Compact Design: Easily install within 10 minutes with aluminum body, suitable for Android Radio Super Bass Subwoofer. Specification: Item Type: Navigation DSP Amplifier Box Material: Metal Amplifier Technology: A/B Class Maximum Stable Load: 2Ω RMS Power 4Ω: 4x30W at 14.4V RMS Power 2Ω: 4x50W at 14.4V Signal to Noise Ratio: ≥90dB at 1W(4Ω) Frequency Response: 20Hz-20kHz (-3dB) RCA Signal Output: 4V Fitment: Fits for Android Radio Super Bass Subwoofer. Package List: 1 x Navigation DSP Amplifier Box1 x Wiring Cable