The SLLC1 Speaker Level to Line Level Converter is a simple device that allows the MRC44CTL or MRAUDIO4X4CTL to be used with an auxiliary amplifier. The SLLC1 is connected to the amplifier (zone audio) output on the multi-room system. The SLLC1 then converts the amplifier output signal to a line-level output signal. The line-level output signal can now be connected to the pre-amplifier input on an auxiliary amplifier. The benefit of using an auxiliary amplifier is that it allows the multi-room system to expand in areas such as indoor pools, large outdoor areas, or even long hallways.