Digital coaxial / optical problems....

[joemann]

Hi, I have a Goodmans GHC56PRO 5.1 system, a Toshiba 37x3030DB and an XBOX. From the xbox I have a digital optical cable going in to an optical to coaxial converter. From the TV, I have a stereo output over phono to the 5.1 amp (simply for watching the freeview). When im watching the freeview the sound is perfectly clear. When I have the amp switched to the digital coaxial input there is a lot of digital sounding noise. At first I thought it might be a ground loop issue so I tried a group loop isolator, no change. Does anyone have a clue as to what might be causing this? Can this be caused by the cheap optical to coax converter?

Cheers

 

[biggiegc]

Hi, I have a Goodmans GHC56PRO 5.1 system, a Toshiba 37x3030DB and an XBOX.
1. From the xbox I have a digital optical cable going in to an optical to coaxial converter.
2. From the TV, I have a stereo output over phono to the 5.1 amp (simply for watching the freeview). When im watching the freeview the sound is perfectly clear.

When I have the amp switched to the digital coaxial input there is a lot of digital sounding noise. At first I thought it might be a ground loop issue so I tried a group loop isolator, no change. Does anyone have a clue as to what might be causing this? Can this be caused by the cheap optical to coax converter?

Cheers

Hey mate; this could well be the issue, i brought one recently to connect SKY HD to my AV system:

http://www.maplin.co.uk/searchtemplate.asp?criteria=DIGITAL%20COAX%20CONVERTER

it runs off a power source; if you have the same one I suggest you buy your sound cables from QED shop, google it online..#

hope it helps..

 

[joemann]

Ah nice one. I assume you've got this one below? ...and better quality cables sorted this out for you?