Help please - How long can you run a 75ohm digital coax cable?


Hi,
I am considering connecting my main audio system to my Home Theater system by way of digital coax. Going out of my Cambridge Audio AZURE 851N to the Input of my Cambridge Audio DAC Magic Plus connected to my HTS. I need to use about 35' of cable to do this, is it possible?

Thanks for your help!
grm

Showing 1 response by teo_audio

It is considered to technically be about a 10M (31 ft) limit, for a 75 ohm spec cable with appropriate termination.

Using a BNC terminated cable, with proper termination at/in the connected devices, with the proper spec cable body, can stretch that out to approx 1km (3100 ft).

AES/EBU balanced as a length limit, is considered to be about 100M (310 ft).

Each gets into higher jitter as the cable body lengthens . Or when the signal frequency increases (not quite true). When reaching the limit in length, and trying to use 192/24 digital data, or DSD, one might find the signal is not locked on to properly, or constantly disconnects and reconnects.

ST optical does away with some of this, as problems go. One still has to have good jitter amelioration methods in place, at the receiving end, even when doing everything correctly.