The delivery was prompt, processing of the device is excellent, the sound just great - because I can join all reviews. Attached was a Pro-Ject Phono Elemental (USB) and an iPhone. Unfortunately, after a month there is a problem, the volume has begun to vary operation after a half an hour, the bass have failed again and again for a few seconds, changing cables, etc. has brought nothing. Unfortunately I had to return the equipment. A detailed vote would be as follows: