On Sat, 3 Jan 2004 13:06:14 +0000, Chris Morriss
wrote:

All audio fibre-optic links use multimode fibre. Single mode fibre
(with no bouncing about) is only used on telecomms links at hundreds and
more Megabits/sec.

Not true. There are several 'high end' transport/DAC pairs which use
the AT&T system. This has high bandwidth Tx/Rx units and normally uses
monomode quartz fibre links.

At the VERY low bit rate used for SPDIF it really doesn't matter a damn.

Well, that's arguably true! :-)

Likewise, as many others have pointed out, for cable runs of a metre or
so, phono-plugs are quite OK for copper connections. Use a proper
RG-spec cable and BNC connectors for long lengths by all means.

Agreed.

I'm now playing with multi-channel 24bit, 48kHz sample-rate pro-audio
over Cobranet at work. Have a look at the Cirrus web site, some
seriously good work being done on the distribution of digital audio
feeds there.

Well, it's hardly rocket science for any comms engineer, is it? :-)
--

Stewart Pinkerton | Music is Art - Audio is Engineering