Back then I had problems with my Presonus 32R. From the beginning I did a total hardware reset because my first 4 input channels did not work with my MAC but before my logic has recognized the Presonus 32R and Main OUT to monitors Yamaha was OK and I can hear all coils via Presonus 32R. After hardware reset I installed new drivers from Presonus and after that Logic recognizes Presonus 32R but I can't hear from Yamaha monitors although Logic shows via AUDIO settings that the Presonus 32R is active. Error corrected beforehand. Can anyone help me