Has anyone tried Blue Jeans Cable LC-1 RCA IC?

I used to use a lot of Blue Jeans LC-1s, but have swapped most of the critical ones out for silver IC’s. I think of the LC-1 as an above average IC that does no harm and has good detail thanks to the low capacitance. It is very good for long runs where you need a shielded cable with low capacitance most. It feels like a high quality cable due to the industrial strength connectors and thick shielding. I still use a 10 footer with good results. The low capacitance helps me feel at ease about the long length because I know I have done what I can to save the top end, and the price is right for that length. That said, I heard more openness and detail when I switched the shorter length LC-1s to unshielded silver RCA cables. My silver IC’s are much more expensive than an LC-1, and in its defense I have heard worse sound from other copper cables in the $100+ per half meter price range. In my system, the LC-1s had a dependable neutrality that I preferred over the EQ swings or just lack of better sound that I heard from the more expensive cables that I sent back for a refund.

For a cheaper silver IC, check out the Stager Silver Solids, at http://stagersound.com/silver/  

A fraction of the price of your typical silver content cables from Kimber, etc., but with some pretty good quality, no nonsense cables.  

Good call on the Silver Solids, that actually is what I am using. They are an amazing value but also expensive compared to the Blue Jeans cables. I didn’t want to call them out by name, but they sound better than anything else I have tried. Probably the cheapest way to use silver without making your own.

That's funny, I wasn't even trying to guess!  I had been looking at cables in the $600 range, and so for me the Stagers at $120 for a 30" length is pretty cheap.  

what are the prices of the Groneberg Quattro cables? TS Premium cables?

They're under $500/pair for ICs.