AudioControl LC2i PRO 2-Channel Line Output Converter with Impedance Matching, AccuBASS, GTO, Audio Signal Sense, 12V Turn-On and ACR-1 Dash Remote Subwoofer ControlAudioControl Line Output Converter AccuBass Vehicle Audio Amplifier, 1.30lb Includes AudioControl universal dash remote (ACR1) for convenient control Active speaker level inputs with up to 40V input handling for versatile connectivity Compact slim chassis with integrated mounting bracket for easy installation Built-in line driver providing up to 9.5 Vrms output for enhanced audio performance AccuBASS bass roll-off compensation circuit for improved low-frequency response