Anyone using Tributaries Silver Series?

Browsing for AV accessories, I found the Tributaries homepage, where the SCD-H HDMI cable and HDMI signal restorer struck interest. I then noticed their silver series audio cables as well, in particular the SCA-TL IC. Apparently Tributaries have no distributor in Germany, so auditioning becomes a bit difficult. Out of interest, what league would you put them in in terms of quality and in terms of price (audio and video cables)? Thanks.
Karel