Impedance mis-match?


Given the following component s

V-link USB/spdif converter - spfdif output states 50 ohm impedance
Bifrost DAC - spdif input states 75 ohm impedance

Which cable would be best to connect these components
1. a 50 ohm cable
2. a 75 ohm cable

Would there be any other issues?

Many thanks
williewonka

Showing 2 responses by williewonka

Thanks guys - that was my thinking also

However, I do have these two components and they work extremely well together.

Perhaps it's a typo on the v-link spec? - I'll have to contact them

Perhaps it's the cables I'm using - which are far from standard 75 ohm cable specs

If you're interested in the cables I'm using I've posted details on Cheap Tweaks

02-19-15: Williewonka I don't know why this works - but it does...

It would be interesting to actually know what the scoop really is :-)

Chat Later
Here's the response from MF...

most digital parts I know of are 50 ohms (or 100 ohms balanced) to preserve square wave edges. That said at these relatively lowish frequencies (low MHz) such a mismatch is unlikely to cause problems unless going into extremely long cables.
So nothing for your average home user to worry about.....
Very best regards,

Randy Bingham
Phoenix, AZ. 85076
National Sales Manager
Musical Fidelity LTD.

I am extremely happy with mine - my Bifrost has never sounded so good.

And remember - Don't shoot the messenger :-)