The TSD-RL21 2x1 mic/line mixer is ideal for paging, public address, and BGM music applications.Use as a standalone remote mixer or in conjunction with Atlas Sound power amplifiers in applications such as conference center meeting rooms, football stadiums, gymnasiums, retail/hospitality, or other areas requiring versatile, multi source mix control.Channel one may be configured via rear panel dipswitch to accommodate mic or line level while channel two features a stereo summing RCA line level input.The remote level control feature allows use of the AAVC-10K (or equivalent) decorative wall plate control for convenient remote adjustment of either the entire mix bus or RCA input 2 only (the typical BGM input).