Acoustic Zen Silver Reference vs. Silver Ref Mk2..


Could anyone share with me the sonic differences between the Acoustic Zen Silver Ref. Mk1 and Mk2.

I'm thinking of picking up a used pair of interconnects and wanted to know the difference before buying.

Thanks for sharing your experiences with me.
I'm sorry, I meant to have posted this in the cable forum.

Moderator would you be so kind to move this thread to the cable forum. Thank you.
I have seen information on the web about the difference, but don't recall where. Maybe it was a review in Positive Feedback or Enjoy the Music.

If it's not Mk2, it's not worth much on the used market.