left channel
Prominent Member
I don't see anything wrong with Pro Ject, except the fact that external power supply don't make any difference, remember that initially in the manual was written that it only use power from the usb source.
Maybe the manual is correct, extenal power is needed only for spidf input.
As we've noted, it's generally a positive review. But the external power supply has made a difference in measurements performed by experts, and in subjective listening by others as well.
Re the manual, John has stated here that we should use the supplied PSU for S/PIDF only, and use a linear or battery PSU with USB. But many have heard improvements using the stock PSU while running USB. All or most of us then moved on to third-party power supplies anyway. Because audiophilia.