Better pic showing the clocks with miniconnectors ...see yellow tubing on the right hand side...
Eric,
Another thing that is -very- important.
You must place the clocks right next to the input where they feed and directly join the grounds or
make this connection as short as possible.
It is very probable that the Dexa actually won because it has a transformer at the OP which
makes a longer connection, especially with the HF shielded cable work -much- better and isolates
the grounds.
This was a very smart move on their behalf because all too often a huge part of the differences in
clocks that people hear is from their poor implementation WRT grounds, transmission length.
In the past I have done a test where 2 after market clocks were compared, one obviously better.
The loser had around 80mm longer length of cable connecting it to board. Once the cable was
shortened to 20mm and the clock moved closer, both were virtually identical.
I would advise for the tricord and tent, for the playing field to be equal, they must be mounted
-right- next to the destination board with very short connections, especially the ground. Further to this it's worth experimenting
with the clock OP resistor size. Too small (or none) will give the fastest rise time and potentially lowest jitter but
will induce ringing and bounce. As you make the resistor larger the wave will get cleaner but the sound will change.
There will be a happy medium somewhere. The type of resistor is important too - non magnetic.
Now, having said all of the above, I'm not discounting that the Dexa is the best, but merely that to get best results from
any clock requires careful attention to details.
cheers
Z