Torribala Car Subwoofer Amplifier Board, 500W Subwoofer High HiFi Amplifier Board DC 12V

With Short Circuit Protection and Reverse Connection Protection,double Insurance Design,although You Can Use It With and Boldness. You Can Full Frequency Or Low Frequency Output,there Is No Human Voice Output in Low Frequency () State. With Standard Lotus Socket External Sound Input,it Can Be Connected to Computer,mobile Phone and Other Audio. The -in Squelch Circuit Can Noise,making the Sound Quality more Beautiful and more Pleasant.