The JL Audio RBC-1 Wired Remote Bass Controller is designed to remotely control the Bass EQ boost or Input Level feature of JL Audio amplifier equipped with a "Remote Bass" or "Remote Level" port. When the RBC-1 is connected, the on-board "Boost" control of the amplifier is defeated and the RBC-1 becomes the only active boost controller.
Remote Bass Control for Select JL Audio Amplifiers Specific function depends on the connected amplifier