back again with more questions. I finished my amp6 and it is very good (to my ears).
I bought some new PSB speakers, more efficient 93dB, 6ohms. When i put my ear to the tweeter the hiss is much louder than on my old more inefficient Tannoys (almost inaudible before). The hiss is related to the vista windows volume control. High the volume, higher the hiss. Changing the foobar volume does not increase the hiss, it seems directly linked to the pc volume. Don't get me wrong sat in my listening chair i cannot hear it at all, but it is still irritaing the hell out of me.
Any ideas on this please? Thanks, Mark.