@ -585,8 +585,8 @@ void setup()
master_mixer_r.gain(2, 0.0);
master_mixer_l.gain(2, 0.0);
#endif
master_mixer_r.gain(3, 0.0);
master_mixer_l.gain(3, 0.0);
master_mixer_r.gain(3, 1.0);
master_mixer_l.gain(3, 1.0);
#if defined(TEENSY_AUDIO_BOARD) && defined(SGTL5000_AUDIO_THRU)
audio_thru_mixer_r.gain(0, 1.0); // MD signal sum