I've just taken delivery of a 2 Pin Linum cable from Cosmic Ears, today.
First impressions:
1. The pictures and descriptions really do not adequately express just how thin this cable is.
2. It is extremely comfortable. The minute you put it round your ears, you forget it is there.
3. Removes the need for memory wire or ear-guides.
4. Fit was perfect in both CIEM's I tried it in (Cosmic Ears HY3 and Cosmic Ears reshelled TF10) and not loose in any way - I do not have any universal fit IEM's with a 2 pin socket to try it with.
5. Absolutely no cable microphonics. The outer sleeve of the cable is both soft and flexible.
6. Sound seems to be unaltered from other cables I have (with the exception of the Dark Lord cable I have for my TF10, which continues to have a sound all of its own)
This cable has essentially made all my other CIEM cables redundant.
Next up, is to see if I can obtain an MMCX connector variant of this cable, as I would dearly love to replace the cable on my UE900 with one of these Linum cables.