Nick Rout wrote:
I want to connect my linux [1] media box to my amplifier via the coax digital audio out, and a dvd player via the optical digital audio out (the amp has two digital audio inputs, one coax the other optical).
The cables seem rather expensive.
digital coax 0.9 m, DSE item C1394 $29.00
Digital coax is an RF signal. You'll need a cable with constant 75Ohm impedance. The standard RCA connector is NOT 75Ohm, but they are available. Using a standard cable will smear the digital transitions,
lowering the effective bandwidth of the cable, causing jitter to appear
after the SPDIF input receiver. This jitter, if within the audio band
will degrade the audio quality. That said, $29 is far far too much for
a 75Ohm RCA cable (hint, a video cable is also a 75Ohm cable).
digital optical 0.9m DSE item C1392 $50.00
Again, far far too much for a plastic optical cable.
Anyone know of any more acceptably priced alternatives? (I have searched a number of local electronics websites, but maybe my search techniques are all wrong)
http://www1.jaycar.co.nz/productView.asp?ID=WQ7266&CATID=&keywords=optical&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=
Cheers, Rex
