Master Clock questions - cable length etc

I am about a year in with the Teac NT-505 streamer that I took a chance on and really liked and seeing as it's not making me itch for a different piece of digital gear which almost always happens I decided to grab the matching CG-10M master clock.  The main question I have is how important is it to have a 50 ohm cable and secondly am I better off stacking the components and having the shortest possible cable length between DAC and Clock or am I alright using the usual 1-2 meter length that is recommended for a digital cable?

I have started out with the Black Cat Silverstar 75 just to get everything running but apparently 50 ohm is correct, 50 ohm BNC cables seem to be fairly common for broadcast use so if that's the best thing to get so be it.

First impression upon hooking the clock up was that it livens up the sound and puts a bit more flesh on the bone which makes all of the various instruments sound more tangible in the room.  I gave the NT-505 great marks from the get go for having excellent/realistic tone and the clock seems to bring that quality out just a bit more.  

I'm not sure that you would say that the clock represents great value as it's almost as much as the streamer cost wise but it definitely makes a difference and the 2 together definitely make for a very pleasing digital presentation.