I remember hearing hiss on the 601 but the 3rd ANV may be even worse. I'm not really sure now as I haven't heard the 601 in so long. The 3rd ANV was generally a non issue with hiss. But you can hear it with no music going and you pause the music. I'd say 95% of the time it was a non issue for me though.
4/17/14 at 11:16pm