SPL GEMINI M/S Processor for Mastering Applications - RedStyled in black, the SPL Gemini is an M S processor meant for mastering applciations. The unit is both an M S encoder and a decoder, allowing you to monitor the mids and sides in solo. More mastering processing processes are available to you with the Gemini. For instance, you can use the Trim and Stereo Width controls to change the relationship between the center and side signals in an extremely precise way. With the Balance control, you can even pan