Crystal Cable - Have you heard or compared them?

Yes, they are light and flexible and I've used their MCH sets for a while. No complaints.

Kal

Have you compared them to other cables?

I have tried the Micro and Piccolo in my system. I normally use the Oritek X-2 or CRL Silver ICs from my DAC to preamp. I tried both the Micro and Piccolo and can say that both are very good cables. They are very neutral and let through a lot of detail. I also like the fact that they are well shielded and very flexible cables. Overall I preferred the Micro and have been using this exclusively for the last 2 months or so. I did try the Micro and Piccolo in my system together. I placed the Piccolo between my preamp and amp. While the sound was great, I felt the combo was a little too much of a good thing together. I preferred the RSAD Poemia!!! or CRL Silver between the preamp and amp instead.

I tried a pair of the interconnects and speaker cables last year.

They are well built. I found both to be neutral, transparent, with their strength in the upper mids. I did not like the high end; it reminded me too much of Valhalla. Both lacked bottom end extension. These comments are based on use in a couple systems here when compared to some other well known cables. YMMV

They are not cheap and IMO there are other cables offering more for less. For the money Acoustic Zen, Analysis Plus, and others are better values.

Disclaimer: cable seller