Solid State Logic Matrix 5.1 Monitor Card
SSL Matrix 5.1 monitor card
Optional 5.1 Monitoring Expansion Card For Matrix.
Installing this option will convert the External Source inputs EXT A and B input from stereo to 5.1, and the stereo monitor outputs into two 5.1 outputs. This provides 2 input stems for 5.1 monitoring, and 2 sets of 5.1 speakers to switch between and control using the Matrix centre section.