"david" wrote in message
om...
: Could anyone please offer me some constructive suggestions:
:
: Almost a year ago, I bought an Echo Mia soundcard and installed it in
: my computer. Up to now I have not got it to work properly, suggesting
: that
: my set-up is incorrect.
:
snip bits I don't follow about balanced i/o
:
: Similarly, whenever the amplifier is connected to the soundcard's
: inputs the signal that it receives includes a constant hum, so that
: any
: recordings I make with it from my sound system are marred by the hum
: that is recorded along with the music.
:
: Please let me know if you have any suggestions for reducing or
: eliminating the hum.

I have exactly the same problem connecting an old Pioneer receiver to my
Audigy Platinum card. I've tried phono and DIN leads - same result. It's my
guess that I need shielded phono cables, where you ground the shield (copper
braid) at the source end and leave it open at the destination end as in:
http://www.qed.co.uk/cables/incon/qunex_2.html
which is obviously a rather expensive cable, particularly if that's not the
problem. They're quite easy to make up from Maplin's stock tho.

Rob