I'm a beginner in this field so I thought I'd start with some basic headphone + amp.
I got my HD 598 last year and have been loving it ever since.
I finally got some money to buy amp and DAC and since many recommended fiio to be a entry level amp and dac, I decided to get the e7/e9 combo.
I received them today and went to test them out.
The E9 works fine with line in to my iphone then out to my HD598.
The E7 works fine with line in to iphone then to HD598.
However, the DAC of E7 seems to be causing some problem.
Whenever I have my E7 connected to the PC then out to my headphone, I hear a constant buzzing noise.
The same happens when I use E9/E7 together.
If it was just the buzzing, I wouldn't mind since they became almost negligent once the music starts, but while the music is playing, there seems to be lot of random popping and static noise in intervals.
I heard the buzzing noise is normal for E7 but is the static and popping supposed to happen?
I tried using all the USB ports and also different computer but problem still insist.
Did I just get a defective one? or is there a way to solve this?