MacBook Pro os Sierra 10.12.3
2.2 GHz Intel Core i7
16 GB 1600 Mhz DDR3
The is signal going into my Focusrite Scarlett 18i8, but nothing into S1. The meter shows some sort of background noise even if there is nothing connected.
As stated in the subject. The red light is showing on the performance meter even though the CPU usage is 5%-10%. No sound through playback or armed track.